Finding the Fourth Proportional to 31,274.39, 43,156.98 and 17,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,274.39 : 43,156.98 = 17,124.50 : x
2. Step 2: Convert to fraction form
   31,274.39/43,156.98 = 17,124.50/x
3. Step 3: Cross multiply
   31,274.39x = 43,156.98 × 17,124.50
4. Step 4: Simplify right side
   31,274.39x = 739,041,488.23
5. Step 5: Solve for x
   x = 739,041,488.23/31,274.39
6. Step 6: Final answer
   x = 23,630.89