Finding the Fourth Proportional to 168,514.73, 232,443.53 and 128,139.98

Step by Step Solution

1. Step 1: Write the proportion equation
   168,514.73 : 232,443.53 = 128,139.98 : x
2. Step 2: Convert to fraction form
   168,514.73/232,443.53 = 128,139.98/x
3. Step 3: Cross multiply
   168,514.73x = 232,443.53 × 128,139.98
4. Step 4: Simplify right side
   168,514.73x = 29,785,308,443.46
5. Step 5: Solve for x
   x = 29,785,308,443.46/168,514.73
6. Step 6: Final answer
   x = 176,751.96