Finding the Fourth Proportional to 78,569.06, 108,425.66 and 42,758.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,569.06 : 108,425.66 = 42,758.82 : x
2. Step 2: Convert to fraction form
   78,569.06/108,425.66 = 42,758.82/x
3. Step 3: Cross multiply
   78,569.06x = 108,425.66 × 42,758.82
4. Step 4: Simplify right side
   78,569.06x = 4,636,153,065.53
5. Step 5: Solve for x
   x = 4,636,153,065.53/78,569.06
6. Step 6: Final answer
   x = 59,007.37