Finding the Fourth Proportional to 22,656.17, 31,259.04 and 13,697.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,656.17 : 31,259.04 = 13,697.17 : x
2. Step 2: Convert to fraction form
   22,656.17/31,259.04 = 13,697.17/x
3. Step 3: Cross multiply
   22,656.17x = 31,259.04 × 13,697.17
4. Step 4: Simplify right side
   22,656.17x = 428,160,384.92
5. Step 5: Solve for x
   x = 428,160,384.92/22,656.17
6. Step 6: Final answer
   x = 18,898.18