Finding the Fourth Proportional to 31,482.72, 43,435.17 and 17,869.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,482.72 : 43,435.17 = 17,869.15 : x
2. Step 2: Convert to fraction form
   31,482.72/43,435.17 = 17,869.15/x
3. Step 3: Cross multiply
   31,482.72x = 43,435.17 × 17,869.15
4. Step 4: Simplify right side
   31,482.72x = 776,149,568.01
5. Step 5: Solve for x
   x = 776,149,568.01/31,482.72
6. Step 6: Final answer
   x = 24,653.19