Finding the Fourth Proportional to 127,438.50, 175,865.34 and 70,849.89

Step by Step Solution

1. Step 1: Write the proportion equation
   127,438.50 : 175,865.34 = 70,849.89 : x
2. Step 2: Convert to fraction form
   127,438.50/175,865.34 = 70,849.89/x
3. Step 3: Cross multiply
   127,438.50x = 175,865.34 × 70,849.89
4. Step 4: Simplify right side
   127,438.50x = 12,460,039,993.81
5. Step 5: Solve for x
   x = 12,460,039,993.81/127,438.50
6. Step 6: Final answer
   x = 97,772.96