Finding the Fourth Proportional to 99,325,801.83, 137,068,518.75 and 54,670,819.12

Step by Step Solution

1. Step 1: Write the proportion equation
   99,325,801.83 : 137,068,518.75 = 54,670,819.12 : x
2. Step 2: Convert to fraction form
   99,325,801.83/137,068,518.75 = 54,670,819.12/x
3. Step 3: Cross multiply
   99,325,801.83x = 137,068,518.75 × 54,670,819.12
4. Step 4: Simplify right side
   99,325,801.83x = 7,493,648,195,156,978
5. Step 5: Solve for x
   x = 7,493,648,195,156,978/99,325,801.83
6. Step 6: Final answer
   x = 75,445,131.65