Finding the Fourth Proportional to 9,146.16, 12,621.76 and 5,368.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.16 : 12,621.76 = 5,368.48 : x
2. Step 2: Convert to fraction form
   9,146.16/12,621.76 = 5,368.48/x
3. Step 3: Cross multiply
   9,146.16x = 12,621.76 × 5,368.48
4. Step 4: Simplify right side
   9,146.16x = 67,759,666.12
5. Step 5: Solve for x
   x = 67,759,666.12/9,146.16
6. Step 6: Final answer
   x = 7,408.54