Finding the Fourth Proportional to 12,259.34, 18,384.78 and 4,861.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,259.34 : 18,384.78 = 4,861.88 : x
2. Step 2: Convert to fraction form
   12,259.34/18,384.78 = 4,861.88/x
3. Step 3: Cross multiply
   12,259.34x = 18,384.78 × 4,861.88
4. Step 4: Simplify right side
   12,259.34x = 89,384,594.19
5. Step 5: Solve for x
   x = 89,384,594.19/12,259.34
6. Step 6: Final answer
   x = 7,291.14