Finding the Fourth Proportional to 31,300.99, 46,951.55 and 9,114.90

Step by Step Solution

1. Step 1: Write the proportion equation
   31,300.99 : 46,951.55 = 9,114.90 : x
2. Step 2: Convert to fraction form
   31,300.99/46,951.55 = 9,114.90/x
3. Step 3: Cross multiply
   31,300.99x = 46,951.55 × 9,114.90
4. Step 4: Simplify right side
   31,300.99x = 427,958,683.10
5. Step 5: Solve for x
   x = 427,958,683.10/31,300.99
6. Step 6: Final answer
   x = 13,672.37