Finding the Fourth Proportional to 52,005.57, 71,767.61 and 28,132.17

Step by Step Solution

1. Step 1: Write the proportion equation
   52,005.57 : 71,767.61 = 28,132.17 : x
2. Step 2: Convert to fraction form
   52,005.57/71,767.61 = 28,132.17/x
3. Step 3: Cross multiply
   52,005.57x = 71,767.61 × 28,132.17
4. Step 4: Simplify right side
   52,005.57x = 2,018,978,464.35
5. Step 5: Solve for x
   x = 2,018,978,464.35/52,005.57
6. Step 6: Final answer
   x = 38,822.35