Finding the Fourth Proportional to 31,152.08, 42,989.78 and 17,539.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,152.08 : 42,989.78 = 17,539.02 : x
2. Step 2: Convert to fraction form
   31,152.08/42,989.78 = 17,539.02/x
3. Step 3: Cross multiply
   31,152.08x = 42,989.78 × 17,539.02
4. Step 4: Simplify right side
   31,152.08x = 753,998,611.22
5. Step 5: Solve for x
   x = 753,998,611.22/31,152.08
6. Step 6: Final answer
   x = 24,203.80