Finding the Fourth Proportional to 168,499.63, 232,605.17 and 111,172.69

Step by Step Solution

1. Step 1: Write the proportion equation
   168,499.63 : 232,605.17 = 111,172.69 : x
2. Step 2: Convert to fraction form
   168,499.63/232,605.17 = 111,172.69/x
3. Step 3: Cross multiply
   168,499.63x = 232,605.17 × 111,172.69
4. Step 4: Simplify right side
   168,499.63x = 25,859,342,456.81
5. Step 5: Solve for x
   x = 25,859,342,456.81/168,499.63
6. Step 6: Final answer
   x = 153,468.24