Finding the Fourth Proportional to 39,002.89, 58,513.15 and 12,350.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,002.89 : 58,513.15 = 12,350.50 : x
2. Step 2: Convert to fraction form
   39,002.89/58,513.15 = 12,350.50/x
3. Step 3: Cross multiply
   39,002.89x = 58,513.15 × 12,350.50
4. Step 4: Simplify right side
   39,002.89x = 722,666,659.08
5. Step 5: Solve for x
   x = 722,666,659.08/39,002.89
6. Step 6: Final answer
   x = 18,528.54