Finding the Fourth Proportional to 31,474.42, 43,435.56 and 17,328.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,474.42 : 43,435.56 = 17,328.13 : x
2. Step 2: Convert to fraction form
   31,474.42/43,435.56 = 17,328.13/x
3. Step 3: Cross multiply
   31,474.42x = 43,435.56 × 17,328.13
4. Step 4: Simplify right side
   31,474.42x = 752,657,030.30
5. Step 5: Solve for x
   x = 752,657,030.30/31,474.42
6. Step 6: Final answer
   x = 23,913.29