Finding the Fourth Proportional to 52,113.59, 71,916.86 and 28,240.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,113.59 : 71,916.86 = 28,240.28 : x
2. Step 2: Convert to fraction form
   52,113.59/71,916.86 = 28,240.28/x
3. Step 3: Cross multiply
   52,113.59x = 71,916.86 × 28,240.28
4. Step 4: Simplify right side
   52,113.59x = 2,030,952,301.71
5. Step 5: Solve for x
   x = 2,030,952,301.71/52,113.59
6. Step 6: Final answer
   x = 38,971.64