Finding the Fourth Proportional to 51,526.71, 71,111.16 and 28,865.25

Step by Step Solution

1. Step 1: Write the proportion equation
   51,526.71 : 71,111.16 = 28,865.25 : x
2. Step 2: Convert to fraction form
   51,526.71/71,111.16 = 28,865.25/x
3. Step 3: Cross multiply
   51,526.71x = 71,111.16 × 28,865.25
4. Step 4: Simplify right side
   51,526.71x = 2,052,641,411.19
5. Step 5: Solve for x
   x = 2,052,641,411.19/51,526.71
6. Step 6: Final answer
   x = 39,836.45