Finding the Fourth Proportional to 72,279,540,123.62, 99,746,669,225.61 and 39,730,307,480.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,279,540,123.62 : 99,746,669,225.61 = 39,730,307,480.10 : x
2. Step 2: Convert to fraction form
   72,279,540,123.62/99,746,669,225.61 = 39,730,307,480.10/x
3. Step 3: Cross multiply
   72,279,540,123.62x = 99,746,669,225.61 × 39,730,307,480.10
4. Step 4: Simplify right side
   72,279,540,123.62x = 3,962,965,838,449,313,579,008
5. Step 5: Solve for x
   x = 3,962,965,838,449,313,579,008/72,279,540,123.62
6. Step 6: Final answer
   x = 54,828,321,149.69