Finding the Fourth Proportional to 102,764,648.32, 141,815,061.32 and 55,721,636.31

Step by Step Solution

1. Step 1: Write the proportion equation
   102,764,648.32 : 141,815,061.32 = 55,721,636.31 : x
2. Step 2: Convert to fraction form
   102,764,648.32/141,815,061.32 = 55,721,636.31/x
3. Step 3: Cross multiply
   102,764,648.32x = 141,815,061.32 × 55,721,636.31
4. Step 4: Simplify right side
   102,764,648.32x = 7,902,167,270,153,388
5. Step 5: Solve for x
   x = 7,902,167,270,153,388/102,764,648.32
6. Step 6: Final answer
   x = 76,895,774.95