Finding the Fourth Proportional to 51,898,896.40, 71,619,216.24 and 28,693,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,898,896.40 : 71,619,216.24 = 28,693,426.72 : x
2. Step 2: Convert to fraction form
   51,898,896.40/71,619,216.24 = 28,693,426.72/x
3. Step 3: Cross multiply
   51,898,896.40x = 71,619,216.24 × 28,693,426.72
4. Step 4: Simplify right side
   51,898,896.40x = 2,055,000,732,926,273.75
5. Step 5: Solve for x
   x = 2,055,000,732,926,273.75/51,898,896.40
6. Step 6: Final answer
   x = 39,596,231.82