Finding the Fourth Proportional to 100,900,793.27, 139,243,089.40 and 54,491,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   100,900,793.27 : 139,243,089.40 = 54,491,042.72 : x
2. Step 2: Convert to fraction form
   100,900,793.27/139,243,089.40 = 54,491,042.72/x
3. Step 3: Cross multiply
   100,900,793.27x = 139,243,089.40 × 54,491,042.72
4. Step 4: Simplify right side
   100,900,793.27x = 7,587,501,133,172,059
5. Step 5: Solve for x
   x = 7,587,501,133,172,059/100,900,793.27
6. Step 6: Final answer
   x = 75,197,636.08