Finding the Fourth Proportional to 127,678.62, 176,196.63 and 71,089.98

Step by Step Solution

1. Step 1: Write the proportion equation
   127,678.62 : 176,196.63 = 71,089.98 : x
2. Step 2: Convert to fraction form
   127,678.62/176,196.63 = 71,089.98/x
3. Step 3: Cross multiply
   127,678.62x = 176,196.63 × 71,089.98
4. Step 4: Simplify right side
   127,678.62x = 12,525,814,902.77
5. Step 5: Solve for x
   x = 12,525,814,902.77/127,678.62
6. Step 6: Final answer
   x = 98,104.25