Finding the Fourth Proportional to 78,987.48, 109,010.17 and 43,182.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,987.48 : 109,010.17 = 43,182.78 : x
2. Step 2: Convert to fraction form
   78,987.48/109,010.17 = 43,182.78/x
3. Step 3: Cross multiply
   78,987.48x = 109,010.17 × 43,182.78
4. Step 4: Simplify right side
   78,987.48x = 4,707,362,188.87
5. Step 5: Solve for x
   x = 4,707,362,188.87/78,987.48
6. Step 6: Final answer
   x = 59,596.31