Finding the Fourth Proportional to 78,105.48, 107,785.62 and 42,295.53

Step by Step Solution

1. Step 1: Write the proportion equation
   78,105.48 : 107,785.62 = 42,295.53 : x
2. Step 2: Convert to fraction form
   78,105.48/107,785.62 = 42,295.53/x
3. Step 3: Cross multiply
   78,105.48x = 107,785.62 × 42,295.53
4. Step 4: Simplify right side
   78,105.48x = 4,558,849,924.28
5. Step 5: Solve for x
   x = 4,558,849,924.28/78,105.48
6. Step 6: Final answer
   x = 58,367.86