Finding the Fourth Proportional to 128,046.54, 176,686.83 and 74,323.02

Step by Step Solution

1. Step 1: Write the proportion equation
   128,046.54 : 176,686.83 = 74,323.02 : x
2. Step 2: Convert to fraction form
   128,046.54/176,686.83 = 74,323.02/x
3. Step 3: Cross multiply
   128,046.54x = 176,686.83 × 74,323.02
4. Step 4: Simplify right side
   128,046.54x = 13,131,898,799.83
5. Step 5: Solve for x
   x = 13,131,898,799.83/128,046.54
6. Step 6: Final answer
   x = 102,555.67