Finding the Fourth Proportional to 31,005.31, 46,508.15 and 7,631.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,005.31 : 46,508.15 = 7,631.59 : x
2. Step 2: Convert to fraction form
   31,005.31/46,508.15 = 7,631.59/x
3. Step 3: Cross multiply
   31,005.31x = 46,508.15 × 7,631.59
4. Step 4: Simplify right side
   31,005.31x = 354,931,132.46
5. Step 5: Solve for x
   x = 354,931,132.46/31,005.31
6. Step 6: Final answer
   x = 11,447.43