Finding the Fourth Proportional to 23,174.88, 31,980.06 and 13,102.74

Step by Step Solution

1. Step 1: Write the proportion equation
   23,174.88 : 31,980.06 = 13,102.74 : x
2. Step 2: Convert to fraction form
   23,174.88/31,980.06 = 13,102.74/x
3. Step 3: Cross multiply
   23,174.88x = 31,980.06 × 13,102.74
4. Step 4: Simplify right side
   23,174.88x = 419,026,411.36
5. Step 5: Solve for x
   x = 419,026,411.36/23,174.88
6. Step 6: Final answer
   x = 18,081.06