Finding the Fourth Proportional to 78,554.48, 108,404.66 and 42,744.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,554.48 : 108,404.66 = 42,744.62 : x
2. Step 2: Convert to fraction form
   78,554.48/108,404.66 = 42,744.62/x
3. Step 3: Cross multiply
   78,554.48x = 108,404.66 × 42,744.62
4. Step 4: Simplify right side
   78,554.48x = 4,633,715,242.18
5. Step 5: Solve for x
   x = 4,633,715,242.18/78,554.48
6. Step 6: Final answer
   x = 58,987.29