Finding the Fourth Proportional to 31,150.61, 42,988.43 and 17,003.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.61 : 42,988.43 = 17,003.96 : x
2. Step 2: Convert to fraction form
   31,150.61/42,988.43 = 17,003.96/x
3. Step 3: Cross multiply
   31,150.61x = 42,988.43 × 17,003.96
4. Step 4: Simplify right side
   31,150.61x = 730,973,459.16
5. Step 5: Solve for x
   x = 730,973,459.16/31,150.61
6. Step 6: Final answer
   x = 23,465.78