Finding the Fourth Proportional to 31,288.91, 46,933.52 and 7,915.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,288.91 : 46,933.52 = 7,915.37 : x
2. Step 2: Convert to fraction form
   31,288.91/46,933.52 = 7,915.37/x
3. Step 3: Cross multiply
   31,288.91x = 46,933.52 × 7,915.37
4. Step 4: Simplify right side
   31,288.91x = 371,495,901.96
5. Step 5: Solve for x
   x = 371,495,901.96/31,288.91
6. Step 6: Final answer
   x = 11,873.09