Finding the Fourth Proportional to 67,514.72, 93,178.23 and 40,670.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,514.72 : 93,178.23 = 40,670.78 : x
2. Step 2: Convert to fraction form
   67,514.72/93,178.23 = 40,670.78/x
3. Step 3: Cross multiply
   67,514.72x = 93,178.23 × 40,670.78
4. Step 4: Simplify right side
   67,514.72x = 3,789,631,293.12
5. Step 5: Solve for x
   x = 3,789,631,293.12/67,514.72
6. Step 6: Final answer
   x = 56,130.45