Finding the Fourth Proportional to 20,598.50, 30,903.53 and 5,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,598.50 : 30,903.53 = 5,807.50 : x
2. Step 2: Convert to fraction form
   20,598.50/30,903.53 = 5,807.50/x
3. Step 3: Cross multiply
   20,598.50x = 30,903.53 × 5,807.50
4. Step 4: Simplify right side
   20,598.50x = 179,472,144.18
5. Step 5: Solve for x
   x = 179,472,144.18/20,598.50
6. Step 6: Final answer
   x = 8,712.87