Finding the Fourth Proportional to 31,741.18, 43,807.37 and 18,317.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,741.18 : 43,807.37 = 18,317.05 : x
2. Step 2: Convert to fraction form
   31,741.18/43,807.37 = 18,317.05/x
3. Step 3: Cross multiply
   31,741.18x = 43,807.37 × 18,317.05
4. Step 4: Simplify right side
   31,741.18x = 802,421,585.55
5. Step 5: Solve for x
   x = 802,421,585.55/31,741.18
6. Step 6: Final answer
   x = 25,280.15