Finding the Fourth Proportional to 114,826.25, 172,216.24 and 72,112.60

Step by Step Solution

1. Step 1: Write the proportion equation
   114,826.25 : 172,216.24 = 72,112.60 : x
2. Step 2: Convert to fraction form
   114,826.25/172,216.24 = 72,112.60/x
3. Step 3: Cross multiply
   114,826.25x = 172,216.24 × 72,112.60
4. Step 4: Simplify right side
   114,826.25x = 12,418,960,468.06
5. Step 5: Solve for x
   x = 12,418,960,468.06/114,826.25
6. Step 6: Final answer
   x = 108,154.37