Finding the Fourth Proportional to 99,325,790.50, 137,068,503.08 and 54,670,807.86

Step by Step Solution

1. Step 1: Write the proportion equation
   99,325,790.50 : 137,068,503.08 = 54,670,807.86 : x
2. Step 2: Convert to fraction form
   99,325,790.50/137,068,503.08 = 54,670,807.86/x
3. Step 3: Cross multiply
   99,325,790.50x = 137,068,503.08 × 54,670,807.86
4. Step 4: Simplify right side
   99,325,790.50x = 7,493,645,795,544,499
5. Step 5: Solve for x
   x = 7,493,645,795,544,499/99,325,790.50
6. Step 6: Final answer
   x = 75,445,116.10