Finding the Fourth Proportional to 13,488,503,274.72, 18,614,354,984.46 and 7,384,754,061.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,488,503,274.72 : 18,614,354,984.46 = 7,384,754,061.36 : x
2. Step 2: Convert to fraction form
   13,488,503,274.72/18,614,354,984.46 = 7,384,754,061.36/x
3. Step 3: Cross multiply
   13,488,503,274.72x = 18,614,354,984.46 × 7,384,754,061.36
4. Step 4: Simplify right side
   13,488,503,274.72x = 137,462,433,571,087,728,640
5. Step 5: Solve for x
   x = 137,462,433,571,087,728,640/13,488,503,274.72
6. Step 6: Final answer
   x = 10,191,081,306.16