Finding the Fourth Proportional to 78,569.59, 108,423.96 and 42,758.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,569.59 : 108,423.96 = 42,758.84 : x
2. Step 2: Convert to fraction form
   78,569.59/108,423.96 = 42,758.84/x
3. Step 3: Cross multiply
   78,569.59x = 108,423.96 × 42,758.84
4. Step 4: Simplify right side
   78,569.59x = 4,636,082,757.81
5. Step 5: Solve for x
   x = 4,636,082,757.81/78,569.59
6. Step 6: Final answer
   x = 59,006.07