Finding the Fourth Proportional to 31,124.72, 46,488.62 and 28,158.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,124.72 : 46,488.62 = 28,158.59 : x
2. Step 2: Convert to fraction form
   31,124.72/46,488.62 = 28,158.59/x
3. Step 3: Cross multiply
   31,124.72x = 46,488.62 × 28,158.59
4. Step 4: Simplify right side
   31,124.72x = 1,309,053,965.67
5. Step 5: Solve for x
   x = 1,309,053,965.67/31,124.72
6. Step 6: Final answer
   x = 42,058.33