Finding the Fourth Proportional to 52,331.28, 72,216.81 and 28,457.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,331.28 : 72,216.81 = 28,457.34 : x
2. Step 2: Convert to fraction form
   52,331.28/72,216.81 = 28,457.34/x
3. Step 3: Cross multiply
   52,331.28x = 72,216.81 × 28,457.34
4. Step 4: Simplify right side
   52,331.28x = 2,055,098,315.89
5. Step 5: Solve for x
   x = 2,055,098,315.89/52,331.28
6. Step 6: Final answer
   x = 39,270.94