Finding the Fourth Proportional to 12,488.08, 17,235.27 and 7,182.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.08 : 17,235.27 = 7,182.76 : x
2. Step 2: Convert to fraction form
   12,488.08/17,235.27 = 7,182.76/x
3. Step 3: Cross multiply
   12,488.08x = 17,235.27 × 7,182.76
4. Step 4: Simplify right side
   12,488.08x = 123,796,807.95
5. Step 5: Solve for x
   x = 123,796,807.95/12,488.08
6. Step 6: Final answer
   x = 9,913.20