Finding the Fourth Proportional to 127,978.72, 176,578.25 and 76,975.04

Step by Step Solution

1. Step 1: Write the proportion equation
   127,978.72 : 176,578.25 = 76,975.04 : x
2. Step 2: Convert to fraction form
   127,978.72/176,578.25 = 76,975.04/x
3. Step 3: Cross multiply
   127,978.72x = 176,578.25 × 76,975.04
4. Step 4: Simplify right side
   127,978.72x = 13,592,117,913.45
5. Step 5: Solve for x
   x = 13,592,117,913.45/127,978.72
6. Step 6: Final answer
   x = 106,206.08