Finding the Fourth Proportional to 9,131.94, 12,602.06 and 4,940.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.94 : 12,602.06 = 4,940.20 : x
2. Step 2: Convert to fraction form
   9,131.94/12,602.06 = 4,940.20/x
3. Step 3: Cross multiply
   9,131.94x = 12,602.06 × 4,940.20
4. Step 4: Simplify right side
   9,131.94x = 62,256,696.81
5. Step 5: Solve for x
   x = 62,256,696.81/9,131.94
6. Step 6: Final answer
   x = 6,817.47