Finding the Fourth Proportional to 9,131.91, 12,602.05 and 4,940.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.91 : 12,602.05 = 4,940.16 : x
2. Step 2: Convert to fraction form
   9,131.91/12,602.05 = 4,940.16/x
3. Step 3: Cross multiply
   9,131.91x = 12,602.05 × 4,940.16
4. Step 4: Simplify right side
   9,131.91x = 62,256,083.72
5. Step 5: Solve for x
   x = 62,256,083.72/9,131.91
6. Step 6: Final answer
   x = 6,817.42