Finding the Fourth Proportional to 127,667.13, 176,186.10 and 71,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,667.13 : 176,186.10 = 71,078.50 : x
2. Step 2: Convert to fraction form
   127,667.13/176,186.10 = 71,078.50/x
3. Step 3: Cross multiply
   127,667.13x = 176,186.10 × 71,078.50
4. Step 4: Simplify right side
   127,667.13x = 12,523,043,708.85
5. Step 5: Solve for x
   x = 12,523,043,708.85/127,667.13
6. Step 6: Final answer
   x = 98,091.37