Finding the Fourth Proportional to 78,395.91, 108,187.11 and 42,586.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,395.91 : 108,187.11 = 42,586.62 : x
2. Step 2: Convert to fraction form
   78,395.91/108,187.11 = 42,586.62/x
3. Step 3: Cross multiply
   78,395.91x = 108,187.11 × 42,586.62
4. Step 4: Simplify right side
   78,395.91x = 4,607,323,342.47
5. Step 5: Solve for x
   x = 4,607,323,342.47/78,395.91
6. Step 6: Final answer
   x = 58,769.95