Finding the Fourth Proportional to 31,088.32, 42,899.83 and 17,478.46

Step by Step Solution

1. Step 1: Write the proportion equation
   31,088.32 : 42,899.83 = 17,478.46 : x
2. Step 2: Convert to fraction form
   31,088.32/42,899.83 = 17,478.46/x
3. Step 3: Cross multiply
   31,088.32x = 42,899.83 × 17,478.46
4. Step 4: Simplify right side
   31,088.32x = 749,822,851.93
5. Step 5: Solve for x
   x = 749,822,851.93/31,088.32
6. Step 6: Final answer
   x = 24,119.12