Finding the Fourth Proportional to 31,264.78, 43,145.43 and 17,117.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,264.78 : 43,145.43 = 17,117.32 : x
2. Step 2: Convert to fraction form
   31,264.78/43,145.43 = 17,117.32/x
3. Step 3: Cross multiply
   31,264.78x = 43,145.43 × 17,117.32
4. Step 4: Simplify right side
   31,264.78x = 738,533,830.53
5. Step 5: Solve for x
   x = 738,533,830.53/31,264.78
6. Step 6: Final answer
   x = 23,621.91