Finding the Fourth Proportional to 7,108.61, 9,812.59 and 5,345.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,108.61 : 9,812.59 = 5,345.34 : x
2. Step 2: Convert to fraction form
   7,108.61/9,812.59 = 5,345.34/x
3. Step 3: Cross multiply
   7,108.61x = 9,812.59 × 5,345.34
4. Step 4: Simplify right side
   7,108.61x = 52,451,629.83
5. Step 5: Solve for x
   x = 52,451,629.83/7,108.61
6. Step 6: Final answer
   x = 7,378.61