Finding the Fourth Proportional to 13,443,373.74, 18,551,770.83 and 7,642,155.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443,373.74 : 18,551,770.83 = 7,642,155.78 : x
2. Step 2: Convert to fraction form
   13,443,373.74/18,551,770.83 = 7,642,155.78/x
3. Step 3: Cross multiply
   13,443,373.74x = 18,551,770.83 × 7,642,155.78
4. Step 4: Simplify right side
   13,443,373.74x = 141,775,522,677,719.88
5. Step 5: Solve for x
   x = 141,775,522,677,719.88/13,443,373.74
6. Step 6: Final answer
   x = 10,546,126.70