Finding the Fourth Proportional to 168,488.94, 232,458.69 and 111,156.72

Step by Step Solution

1. Step 1: Write the proportion equation
   168,488.94 : 232,458.69 = 111,156.72 : x
2. Step 2: Convert to fraction form
   168,488.94/232,458.69 = 111,156.72/x
3. Step 3: Cross multiply
   168,488.94x = 232,458.69 × 111,156.72
4. Step 4: Simplify right side
   168,488.94x = 25,839,345,515.90
5. Step 5: Solve for x
   x = 25,839,345,515.90/168,488.94
6. Step 6: Final answer
   x = 153,359.30