Finding the Fourth Proportional to 112,846.14, 155,777.27 and 78,987.59

Step by Step Solution

1. Step 1: Write the proportion equation
   112,846.14 : 155,777.27 = 78,987.59 : x
2. Step 2: Convert to fraction form
   112,846.14/155,777.27 = 78,987.59/x
3. Step 3: Cross multiply
   112,846.14x = 155,777.27 × 78,987.59
4. Step 4: Simplify right side
   112,846.14x = 12,304,469,960.26
5. Step 5: Solve for x
   x = 12,304,469,960.26/112,846.14
6. Step 6: Final answer
   x = 109,037.58