Finding the Fourth Proportional to 99,862,694.06, 137,814,773.83 and 55,809,691.63

Step by Step Solution

1. Step 1: Write the proportion equation
   99,862,694.06 : 137,814,773.83 = 55,809,691.63 : x
2. Step 2: Convert to fraction form
   99,862,694.06/137,814,773.83 = 55,809,691.63/x
3. Step 3: Cross multiply
   99,862,694.06x = 137,814,773.83 × 55,809,691.63
4. Step 4: Simplify right side
   99,862,694.06x = 7,691,400,029,026,432
5. Step 5: Solve for x
   x = 7,691,400,029,026,432/99,862,694.06
6. Step 6: Final answer
   x = 77,019,752.99