Finding the Fourth Proportional to 31,321.95, 46,989.83 and 9,137.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,321.95 : 46,989.83 = 9,137.06 : x
2. Step 2: Convert to fraction form
   31,321.95/46,989.83 = 9,137.06/x
3. Step 3: Cross multiply
   31,321.95x = 46,989.83 × 9,137.06
4. Step 4: Simplify right side
   31,321.95x = 429,348,896.10
5. Step 5: Solve for x
   x = 429,348,896.10/31,321.95
6. Step 6: Final answer
   x = 13,707.61