Finding the Fourth Proportional to 8,191.42, 12,287.59 and 2,347.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,191.42 : 12,287.59 = 2,347.88 : x
2. Step 2: Convert to fraction form
   8,191.42/12,287.59 = 2,347.88/x
3. Step 3: Cross multiply
   8,191.42x = 12,287.59 × 2,347.88
4. Step 4: Simplify right side
   8,191.42x = 28,849,719.50
5. Step 5: Solve for x
   x = 28,849,719.50/8,191.42
6. Step 6: Final answer
   x = 3,521.94