Finding the Fourth Proportional to 51,561.06, 71,147.01 and 28,898.25

Step by Step Solution

1. Step 1: Write the proportion equation
   51,561.06 : 71,147.01 = 28,898.25 : x
2. Step 2: Convert to fraction form
   51,561.06/71,147.01 = 28,898.25/x
3. Step 3: Cross multiply
   51,561.06x = 71,147.01 × 28,898.25
4. Step 4: Simplify right side
   51,561.06x = 2,056,024,081.73
5. Step 5: Solve for x
   x = 2,056,024,081.73/51,561.06
6. Step 6: Final answer
   x = 39,875.52