Finding the Fourth Proportional to 31,521.99, 43,502.37 and 17,376.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,521.99 : 43,502.37 = 17,376.15 : x
2. Step 2: Convert to fraction form
   31,521.99/43,502.37 = 17,376.15/x
3. Step 3: Cross multiply
   31,521.99x = 43,502.37 × 17,376.15
4. Step 4: Simplify right side
   31,521.99x = 755,903,706.48
5. Step 5: Solve for x
   x = 755,903,706.48/31,521.99
6. Step 6: Final answer
   x = 23,980.20