Finding the Fourth Proportional to 20,598.52, 30,900.18 and 7,457.08

Step by Step Solution

1. Step 1: Write the proportion equation
   20,598.52 : 30,900.18 = 7,457.08 : x
2. Step 2: Convert to fraction form
   20,598.52/30,900.18 = 7,457.08/x
3. Step 3: Cross multiply
   20,598.52x = 30,900.18 × 7,457.08
4. Step 4: Simplify right side
   20,598.52x = 230,425,114.27
5. Step 5: Solve for x
   x = 230,425,114.27/20,598.52
6. Step 6: Final answer
   x = 11,186.49