Finding the Fourth Proportional to 45,649.30, 68,468.55 and 12,367.30

Step by Step Solution

1. Step 1: Write the proportion equation
   45,649.30 : 68,468.55 = 12,367.30 : x
2. Step 2: Convert to fraction form
   45,649.30/68,468.55 = 12,367.30/x
3. Step 3: Cross multiply
   45,649.30x = 68,468.55 × 12,367.30
4. Step 4: Simplify right side
   45,649.30x = 846,771,098.42
5. Step 5: Solve for x
   x = 846,771,098.42/45,649.30
6. Step 6: Final answer
   x = 18,549.49