Finding the Fourth Proportional to 12,844.40, 17,726.52 and 7,807.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,844.40 : 17,726.52 = 7,807.52 : x
2. Step 2: Convert to fraction form
   12,844.40/17,726.52 = 7,807.52/x
3. Step 3: Cross multiply
   12,844.40x = 17,726.52 × 7,807.52
4. Step 4: Simplify right side
   12,844.40x = 138,400,159.43
5. Step 5: Solve for x
   x = 138,400,159.43/12,844.40
6. Step 6: Final answer
   x = 10,775.14