Finding the Fourth Proportional to 9,376.06, 12,940.24 and 5,397.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,376.06 : 12,940.24 = 5,397.08 : x
2. Step 2: Convert to fraction form
   9,376.06/12,940.24 = 5,397.08/x
3. Step 3: Cross multiply
   9,376.06x = 12,940.24 × 5,397.08
4. Step 4: Simplify right side
   9,376.06x = 69,839,510.50
5. Step 5: Solve for x
   x = 69,839,510.50/9,376.06
6. Step 6: Final answer
   x = 7,448.71