Finding the Fourth Proportional to 12,488.32, 17,232.60 and 7,182.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.32 : 17,232.60 = 7,182.10 : x
2. Step 2: Convert to fraction form
   12,488.32/17,232.60 = 7,182.10/x
3. Step 3: Cross multiply
   12,488.32x = 17,232.60 × 7,182.10
4. Step 4: Simplify right side
   12,488.32x = 123,766,256.46
5. Step 5: Solve for x
   x = 123,766,256.46/12,488.32
6. Step 6: Final answer
   x = 9,910.56