Finding the Fourth Proportional to 12,074.64, 18,117.12 and 5,056.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074.64 : 18,117.12 = 5,056.30 : x
2. Step 2: Convert to fraction form
   12,074.64/18,117.12 = 5,056.30/x
3. Step 3: Cross multiply
   12,074.64x = 18,117.12 × 5,056.30
4. Step 4: Simplify right side
   12,074.64x = 91,605,593.86
5. Step 5: Solve for x
   x = 91,605,593.86/12,074.64
6. Step 6: Final answer
   x = 7,586.61