Finding the Fourth Proportional to 31,038.60, 42,838.02 and 17,611.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,038.60 : 42,838.02 = 17,611.32 : x
2. Step 2: Convert to fraction form
   31,038.60/42,838.02 = 17,611.32/x
3. Step 3: Cross multiply
   31,038.60x = 42,838.02 × 17,611.32
4. Step 4: Simplify right side
   31,038.60x = 754,434,078.39
5. Step 5: Solve for x
   x = 754,434,078.39/31,038.60
6. Step 6: Final answer
   x = 24,306.32