Finding the Fourth Proportional to 9,345.18, 12,894.74 and 5,567.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,345.18 : 12,894.74 = 5,567.88 : x
2. Step 2: Convert to fraction form
   9,345.18/12,894.74 = 5,567.88/x
3. Step 3: Cross multiply
   9,345.18x = 12,894.74 × 5,567.88
4. Step 4: Simplify right side
   9,345.18x = 71,796,364.95
5. Step 5: Solve for x
   x = 71,796,364.95/9,345.18
6. Step 6: Final answer
   x = 7,682.72