Finding the Fourth Proportional to 31,272.72, 43,156.40 and 17,125.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,272.72 : 43,156.40 = 17,125.52 : x
2. Step 2: Convert to fraction form
   31,272.72/43,156.40 = 17,125.52/x
3. Step 3: Cross multiply
   31,272.72x = 43,156.40 × 17,125.52
4. Step 4: Simplify right side
   31,272.72x = 739,075,791.33
5. Step 5: Solve for x
   x = 739,075,791.33/31,272.72
6. Step 6: Final answer
   x = 23,633.24