Finding the Fourth Proportional to 57,663, 79,506.78 and 40,670.04

Step by Step Solution

1. Step 1: Write the proportion equation
   57,663 : 79,506.78 = 40,670.04 : x
2. Step 2: Convert to fraction form
   57,663/79,506.78 = 40,670.04/x
3. Step 3: Cross multiply
   57,663x = 79,506.78 × 40,670.04
4. Step 4: Simplify right side
   57,663x = 3,233,543,922.87
5. Step 5: Solve for x
   x = 3,233,543,922.87/57,663
6. Step 6: Final answer
   x = 56,076.58