Finding the Fourth Proportional to 12,308.88, 18,462.56 and 5,288.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.88 : 18,462.56 = 5,288.88 : x
2. Step 2: Convert to fraction form
   12,308.88/18,462.56 = 5,288.88/x
3. Step 3: Cross multiply
   12,308.88x = 18,462.56 × 5,288.88
4. Step 4: Simplify right side
   12,308.88x = 97,646,264.33
5. Step 5: Solve for x
   x = 97,646,264.33/12,308.88
6. Step 6: Final answer
   x = 7,932.99