Finding the Fourth Proportional to 99,796,910.28, 137,668,150.98 and 63,148,738.92

Step by Step Solution

1. Step 1: Write the proportion equation
   99,796,910.28 : 137,668,150.98 = 63,148,738.92 : x
2. Step 2: Convert to fraction form
   99,796,910.28/137,668,150.98 = 63,148,738.92/x
3. Step 3: Cross multiply
   99,796,910.28x = 137,668,150.98 × 63,148,738.92
4. Step 4: Simplify right side
   99,796,910.28x = 8,693,570,123,835,162
5. Step 5: Solve for x
   x = 8,693,570,123,835,162/99,796,910.28
6. Step 6: Final answer
   x = 87,112,618.01