Finding the Fourth Proportional to 31,137.04, 42,970.32 and 17,709.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,137.04 : 42,970.32 = 17,709.52 : x
2. Step 2: Convert to fraction form
   31,137.04/42,970.32 = 17,709.52/x
3. Step 3: Cross multiply
   31,137.04x = 42,970.32 × 17,709.52
4. Step 4: Simplify right side
   31,137.04x = 760,983,741.45
5. Step 5: Solve for x
   x = 760,983,741.45/31,137.04
6. Step 6: Final answer
   x = 24,439.82