Finding the Fourth Proportional to 8,945.32, 12,341.67 and 5,167.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,945.32 : 12,341.67 = 5,167.99 : x
2. Step 2: Convert to fraction form
   8,945.32/12,341.67 = 5,167.99/x
3. Step 3: Cross multiply
   8,945.32x = 12,341.67 × 5,167.99
4. Step 4: Simplify right side
   8,945.32x = 63,781,627.14
5. Step 5: Solve for x
   x = 63,781,627.14/8,945.32
6. Step 6: Final answer
   x = 7,130.17