Finding the Fourth Proportional to 8,940.83, 12,340.14 and 5,164.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,940.83 : 12,340.14 = 5,164.61 : x
2. Step 2: Convert to fraction form
   8,940.83/12,340.14 = 5,164.61/x
3. Step 3: Cross multiply
   8,940.83x = 12,340.14 × 5,164.61
4. Step 4: Simplify right side
   8,940.83x = 63,731,948.74
5. Step 5: Solve for x
   x = 63,731,948.74/8,940.83
6. Step 6: Final answer
   x = 7,128.20