Finding the Fourth Proportional to 78,394.10, 108,184.42 and 42,584.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,394.10 : 108,184.42 = 42,584.12 : x
2. Step 2: Convert to fraction form
   78,394.10/108,184.42 = 42,584.12/x
3. Step 3: Cross multiply
   78,394.10x = 108,184.42 × 42,584.12
4. Step 4: Simplify right side
   78,394.10x = 4,606,938,323.41
5. Step 5: Solve for x
   x = 4,606,938,323.41/78,394.10
6. Step 6: Final answer
   x = 58,766.39