Finding the Fourth Proportional to 45,665,399.79, 68,491,456.65 and 13,308,614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,665,399.79 : 68,491,456.65 = 13,308,614.50 : x
2. Step 2: Convert to fraction form
   45,665,399.79/68,491,456.65 = 13,308,614.50/x
3. Step 3: Cross multiply
   45,665,399.79x = 68,491,456.65 × 13,308,614.50
4. Step 4: Simplify right side
   45,665,399.79x = 911,526,393,098,311.50
5. Step 5: Solve for x
   x = 911,526,393,098,311.50/45,665,399.79
6. Step 6: Final answer
   x = 19,960,985.72