Finding the Fourth Proportional to 12,799.32, 17,663.10 and 7,422.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,799.32 : 17,663.10 = 7,422.81 : x
2. Step 2: Convert to fraction form
   12,799.32/17,663.10 = 7,422.81/x
3. Step 3: Cross multiply
   12,799.32x = 17,663.10 × 7,422.81
4. Step 4: Simplify right side
   12,799.32x = 131,109,741.24
5. Step 5: Solve for x
   x = 131,109,741.24/12,799.32
6. Step 6: Final answer
   x = 10,243.50