Finding the Fourth Proportional to 31,307.68, 46,961.43 and 7,934.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,307.68 : 46,961.43 = 7,934.05 : x
2. Step 2: Convert to fraction form
   31,307.68/46,961.43 = 7,934.05/x
3. Step 3: Cross multiply
   31,307.68x = 46,961.43 × 7,934.05
4. Step 4: Simplify right side
   31,307.68x = 372,594,333.69
5. Step 5: Solve for x
   x = 372,594,333.69/31,307.68
6. Step 6: Final answer
   x = 11,901.05