Finding the Fourth Proportional to 52,536.13, 72,500.10 and 28,663.30

Step by Step Solution

1. Step 1: Write the proportion equation
   52,536.13 : 72,500.10 = 28,663.30 : x
2. Step 2: Convert to fraction form
   52,536.13/72,500.10 = 28,663.30/x
3. Step 3: Cross multiply
   52,536.13x = 72,500.10 × 28,663.30
4. Step 4: Simplify right side
   52,536.13x = 2,078,092,116.33
5. Step 5: Solve for x
   x = 2,078,092,116.33/52,536.13
6. Step 6: Final answer
   x = 39,555.49