Finding the Fourth Proportional to 99,677,760, 137,555,308.80 and 53,892,672

Step by Step Solution

1. Step 1: Write the proportion equation
   99,677,760 : 137,555,308.80 = 53,892,672 : x
2. Step 2: Convert to fraction form
   99,677,760/137,555,308.80 = 53,892,672/x
3. Step 3: Cross multiply
   99,677,760x = 137,555,308.80 × 53,892,672
4. Step 4: Simplify right side
   99,677,760x = 7,413,223,139,017,114
5. Step 5: Solve for x
   x = 7,413,223,139,017,114/99,677,760
6. Step 6: Final answer
   x = 74,371,887.36