Finding the Fourth Proportional to 123,528.55, 185,290.88 and 39,287.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,528.55 : 185,290.88 = 39,287.50 : x
2. Step 2: Convert to fraction form
   123,528.55/185,290.88 = 39,287.50/x
3. Step 3: Cross multiply
   123,528.55x = 185,290.88 × 39,287.50
4. Step 4: Simplify right side
   123,528.55x = 7,279,615,251.56
5. Step 5: Solve for x
   x = 7,279,615,251.56/123,528.55
6. Step 6: Final answer
   x = 58,930.63