Finding the Fourth Proportional to 31,415.12, 43,353.72 and 17,268.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,415.12 : 43,353.72 = 17,268.32 : x
2. Step 2: Convert to fraction form
   31,415.12/43,353.72 = 17,268.32/x
3. Step 3: Cross multiply
   31,415.12x = 43,353.72 × 17,268.32
4. Step 4: Simplify right side
   31,415.12x = 748,645,910.15
5. Step 5: Solve for x
   x = 748,645,910.15/31,415.12
6. Step 6: Final answer
   x = 23,830.75