Finding the Fourth Proportional to 33,598.53, 50,393.89 and 12,539.30

Step by Step Solution

1. Step 1: Write the proportion equation
   33,598.53 : 50,393.89 = 12,539.30 : x
2. Step 2: Convert to fraction form
   33,598.53/50,393.89 = 12,539.30/x
3. Step 3: Cross multiply
   33,598.53x = 50,393.89 × 12,539.30
4. Step 4: Simplify right side
   33,598.53x = 631,904,246.54
5. Step 5: Solve for x
   x = 631,904,246.54/33,598.53
6. Step 6: Final answer
   x = 18,807.50