Finding the Fourth Proportional to 78,658.04, 108,544.23 and 42,845.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,658.04 : 108,544.23 = 42,845.91 : x
2. Step 2: Convert to fraction form
   78,658.04/108,544.23 = 42,845.91/x
3. Step 3: Cross multiply
   78,658.04x = 108,544.23 × 42,845.91
4. Step 4: Simplify right side
   78,658.04x = 4,650,676,309.60
5. Step 5: Solve for x
   x = 4,650,676,309.60/78,658.04
6. Step 6: Final answer
   x = 59,125.25