Finding the Fourth Proportional to 127,656.51, 176,162.55 and 71,067.89

Step by Step Solution

1. Step 1: Write the proportion equation
   127,656.51 : 176,162.55 = 71,067.89 : x
2. Step 2: Convert to fraction form
   127,656.51/176,162.55 = 71,067.89/x
3. Step 3: Cross multiply
   127,656.51x = 176,162.55 × 71,067.89
4. Step 4: Simplify right side
   127,656.51x = 12,519,500,725.52
5. Step 5: Solve for x
   x = 12,519,500,725.52/127,656.51
6. Step 6: Final answer
   x = 98,071.78