Finding the Fourth Proportional to 57,366.42, 79,143.54 and 42,294.85

Step by Step Solution

1. Step 1: Write the proportion equation
   57,366.42 : 79,143.54 = 42,294.85 : x
2. Step 2: Convert to fraction form
   57,366.42/79,143.54 = 42,294.85/x
3. Step 3: Cross multiply
   57,366.42x = 79,143.54 × 42,294.85
4. Step 4: Simplify right side
   57,366.42x = 3,347,364,152.77
5. Step 5: Solve for x
   x = 3,347,364,152.77/57,366.42
6. Step 6: Final answer
   x = 58,350.58