Finding the Fourth Proportional to 52,061.99, 71,845.20 and 28,188.61

Step by Step Solution

1. Step 1: Write the proportion equation
   52,061.99 : 71,845.20 = 28,188.61 : x
2. Step 2: Convert to fraction form
   52,061.99/71,845.20 = 28,188.61/x
3. Step 3: Cross multiply
   52,061.99x = 71,845.20 × 28,188.61
4. Step 4: Simplify right side
   52,061.99x = 2,025,216,143.56
5. Step 5: Solve for x
   x = 2,025,216,143.56/52,061.99
6. Step 6: Final answer
   x = 38,900.09