Finding the Fourth Proportional to 31,510.69, 47,249.33 and 9,321.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,510.69 : 47,249.33 = 9,321.01 : x
2. Step 2: Convert to fraction form
   31,510.69/47,249.33 = 9,321.01/x
3. Step 3: Cross multiply
   31,510.69x = 47,249.33 × 9,321.01
4. Step 4: Simplify right side
   31,510.69x = 440,411,312.69
5. Step 5: Solve for x
   x = 440,411,312.69/31,510.69
6. Step 6: Final answer
   x = 13,976.57