Finding the Fourth Proportional to 31,445.86, 43,395.06 and 17,298.40

Step by Step Solution

1. Step 1: Write the proportion equation
   31,445.86 : 43,395.06 = 17,298.40 : x
2. Step 2: Convert to fraction form
   31,445.86/43,395.06 = 17,298.40/x
3. Step 3: Cross multiply
   31,445.86x = 43,395.06 × 17,298.40
4. Step 4: Simplify right side
   31,445.86x = 750,665,105.90
5. Step 5: Solve for x
   x = 750,665,105.90/31,445.86
6. Step 6: Final answer
   x = 23,871.67