Finding the Fourth Proportional to 78,584.10, 108,448.92 and 42,772.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,584.10 : 108,448.92 = 42,772.38 : x
2. Step 2: Convert to fraction form
   78,584.10/108,448.92 = 42,772.38/x
3. Step 3: Cross multiply
   78,584.10x = 108,448.92 × 42,772.38
4. Step 4: Simplify right side
   78,584.10x = 4,638,618,416.83
5. Step 5: Solve for x
   x = 4,638,618,416.83/78,584.10
6. Step 6: Final answer
   x = 59,027.44