Finding the Fourth Proportional to 31,170.57, 43,002.33 and 19,061.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,170.57 : 43,002.33 = 19,061.88 : x
2. Step 2: Convert to fraction form
   31,170.57/43,002.33 = 19,061.88/x
3. Step 3: Cross multiply
   31,170.57x = 43,002.33 × 19,061.88
4. Step 4: Simplify right side
   31,170.57x = 819,705,254.18
5. Step 5: Solve for x
   x = 819,705,254.18/31,170.57
6. Step 6: Final answer
   x = 26,297.41