Finding the Fourth Proportional to 78,588.32, 108,451.76 and 42,778.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,588.32 : 108,451.76 = 42,778.22 : x
2. Step 2: Convert to fraction form
   78,588.32/108,451.76 = 42,778.22/x
3. Step 3: Cross multiply
   78,588.32x = 108,451.76 × 42,778.22
4. Step 4: Simplify right side
   78,588.32x = 4,639,373,248.67
5. Step 5: Solve for x
   x = 4,639,373,248.67/78,588.32
6. Step 6: Final answer
   x = 59,033.88