Finding the Fourth Proportional to 648,445,491,443.30, 972,472,408,214.59 and 195,044,034,395.37

Step by Step Solution

1. Step 1: Write the proportion equation
   648,445,491,443.30 : 972,472,408,214.59 = 195,044,034,395.37 : x
2. Step 2: Convert to fraction form
   648,445,491,443.30/972,472,408,214.59 = 195,044,034,395.37/x
3. Step 3: Cross multiply
   648,445,491,443.30x = 972,472,408,214.59 × 195,044,034,395.37
4. Step 4: Simplify right side
   648,445,491,443.30x = 189,674,941,836,354,769,649,664
5. Step 5: Solve for x
   x = 189,674,941,836,354,769,649,664/648,445,491,443.30
6. Step 6: Final answer
   x = 292,507,148,772.33