Finding the Fourth Proportional to 31,294.88, 43,188.67 and 17,870.45

Step by Step Solution

1. Step 1: Write the proportion equation
   31,294.88 : 43,188.67 = 17,870.45 : x
2. Step 2: Convert to fraction form
   31,294.88/43,188.67 = 17,870.45/x
3. Step 3: Cross multiply
   31,294.88x = 43,188.67 × 17,870.45
4. Step 4: Simplify right side
   31,294.88x = 771,800,878.45
5. Step 5: Solve for x
   x = 771,800,878.45/31,294.88
6. Step 6: Final answer
   x = 24,662.21