Finding the Fourth Proportional to 78,821.91, 108,774.36 and 43,012.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,821.91 : 108,774.36 = 43,012.62 : x
2. Step 2: Convert to fraction form
   78,821.91/108,774.36 = 43,012.62/x
3. Step 3: Cross multiply
   78,821.91x = 108,774.36 × 43,012.62
4. Step 4: Simplify right side
   78,821.91x = 4,678,670,212.42
5. Step 5: Solve for x
   x = 4,678,670,212.42/78,821.91
6. Step 6: Final answer
   x = 59,357.48