Finding the Fourth Proportional to 127,439.50, 175,866.72 and 70,850.89

Step by Step Solution

1. Step 1: Write the proportion equation
   127,439.50 : 175,866.72 = 70,850.89 : x
2. Step 2: Convert to fraction form
   127,439.50/175,866.72 = 70,850.89/x
3. Step 3: Cross multiply
   127,439.50x = 175,866.72 × 70,850.89
4. Step 4: Simplify right side
   127,439.50x = 12,460,313,633.38
5. Step 5: Solve for x
   x = 12,460,313,633.38/127,439.50
6. Step 6: Final answer
   x = 97,774.34