Finding the Fourth Proportional to 31,516.86, 47,284.56 and 9,330.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,516.86 : 47,284.56 = 9,330.83 : x
2. Step 2: Convert to fraction form
   31,516.86/47,284.56 = 9,330.83/x
3. Step 3: Cross multiply
   31,516.86x = 47,284.56 × 9,330.83
4. Step 4: Simplify right side
   31,516.86x = 441,204,190.98
5. Step 5: Solve for x
   x = 441,204,190.98/31,516.86
6. Step 6: Final answer
   x = 13,998.99