Finding the Fourth Proportional to 78,401.94, 108,194.08 and 42,592.20

Step by Step Solution

1. Step 1: Write the proportion equation
   78,401.94 : 108,194.08 = 42,592.20 : x
2. Step 2: Convert to fraction form
   78,401.94/108,194.08 = 42,592.20/x
3. Step 3: Cross multiply
   78,401.94x = 108,194.08 × 42,592.20
4. Step 4: Simplify right side
   78,401.94x = 4,608,224,374.72
5. Step 5: Solve for x
   x = 4,608,224,374.72/78,401.94
6. Step 6: Final answer
   x = 58,776.92