Finding the Fourth Proportional to 78,401.70, 108,195.27 and 42,592.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,401.70 : 108,195.27 = 42,592.28 : x
2. Step 2: Convert to fraction form
   78,401.70/108,195.27 = 42,592.28/x
3. Step 3: Cross multiply
   78,401.70x = 108,195.27 × 42,592.28
4. Step 4: Simplify right side
   78,401.70x = 4,608,283,234.52
5. Step 5: Solve for x
   x = 4,608,283,234.52/78,401.70
6. Step 6: Final answer
   x = 58,777.85