Finding the Fourth Proportional to 9,090.86, 12,542.67 and 5,507.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090.86 : 12,542.67 = 5,507.14 : x
2. Step 2: Convert to fraction form
   9,090.86/12,542.67 = 5,507.14/x
3. Step 3: Cross multiply
   9,090.86x = 12,542.67 × 5,507.14
4. Step 4: Simplify right side
   9,090.86x = 69,074,247.31
5. Step 5: Solve for x
   x = 69,074,247.31/9,090.86
6. Step 6: Final answer
   x = 7,598.21