Finding the Fourth Proportional to 31,106.96, 46,646.38 and 8,915.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,106.96 : 46,646.38 = 8,915.24 : x
2. Step 2: Convert to fraction form
   31,106.96/46,646.38 = 8,915.24/x
3. Step 3: Cross multiply
   31,106.96x = 46,646.38 × 8,915.24
4. Step 4: Simplify right side
   31,106.96x = 415,863,672.83
5. Step 5: Solve for x
   x = 415,863,672.83/31,106.96
6. Step 6: Final answer
   x = 13,368.83