Finding the Fourth Proportional to 12,861.55, 19,293.72 and 4,094.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,861.55 : 19,293.72 = 4,094.43 : x
2. Step 2: Convert to fraction form
   12,861.55/19,293.72 = 4,094.43/x
3. Step 3: Cross multiply
   12,861.55x = 19,293.72 × 4,094.43
4. Step 4: Simplify right side
   12,861.55x = 78,996,785.98
5. Step 5: Solve for x
   x = 78,996,785.98/12,861.55
6. Step 6: Final answer
   x = 6,142.09