Finding the Fourth Proportional to 99,854,565.83, 137,799,487.54 and 55,801,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,854,565.83 : 137,799,487.54 = 55,801,564.72 : x
2. Step 2: Convert to fraction form
   99,854,565.83/137,799,487.54 = 55,801,564.72/x
3. Step 3: Cross multiply
   99,854,565.83x = 137,799,487.54 × 55,801,564.72
4. Step 4: Simplify right side
   99,854,565.83x = 7,689,427,022,265,005
5. Step 5: Solve for x
   x = 7,689,427,022,265,005/99,854,565.83
6. Step 6: Final answer
   x = 77,006,263.64