Finding the Fourth Proportional to 52,275.18, 72,140.52 and 28,402.32

Step by Step Solution

1. Step 1: Write the proportion equation
   52,275.18 : 72,140.52 = 28,402.32 : x
2. Step 2: Convert to fraction form
   52,275.18/72,140.52 = 28,402.32/x
3. Step 3: Cross multiply
   52,275.18x = 72,140.52 × 28,402.32
4. Step 4: Simplify right side
   52,275.18x = 2,048,958,134.01
5. Step 5: Solve for x
   x = 2,048,958,134.01/52,275.18
6. Step 6: Final answer
   x = 39,195.62