Finding the Fourth Proportional to 22,971.72, 31,701.06 and 13,035.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,971.72 : 31,701.06 = 13,035.72 : x
2. Step 2: Convert to fraction form
   22,971.72/31,701.06 = 13,035.72/x
3. Step 3: Cross multiply
   22,971.72x = 31,701.06 × 13,035.72
4. Step 4: Simplify right side
   22,971.72x = 413,246,141.86
5. Step 5: Solve for x
   x = 413,246,141.86/22,971.72
6. Step 6: Final answer
   x = 17,989.34