Finding the Fourth Proportional to 78,394.64, 108,180.52 and 42,584.61

Step by Step Solution

1. Step 1: Write the proportion equation
   78,394.64 : 108,180.52 = 42,584.61 : x
2. Step 2: Convert to fraction form
   78,394.64/108,180.52 = 42,584.61/x
3. Step 3: Cross multiply
   78,394.64x = 108,180.52 × 42,584.61
4. Step 4: Simplify right side
   78,394.64x = 4,606,825,253.80
5. Step 5: Solve for x
   x = 4,606,825,253.80/78,394.64
6. Step 6: Final answer
   x = 58,764.54