Finding the Fourth Proportional to 78,195.69, 107,910.18 and 42,385.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,195.69 : 107,910.18 = 42,385.68 : x
2. Step 2: Convert to fraction form
   78,195.69/107,910.18 = 42,385.68/x
3. Step 3: Cross multiply
   78,195.69x = 107,910.18 × 42,385.68
4. Step 4: Simplify right side
   78,195.69x = 4,573,846,358.22
5. Step 5: Solve for x
   x = 4,573,846,358.22/78,195.69
6. Step 6: Final answer
   x = 58,492.31