Finding the Fourth Proportional to 127,122.12, 190,870.56 and 71,072.10

Step by Step Solution

1. Step 1: Write the proportion equation
   127,122.12 : 190,870.56 = 71,072.10 : x
2. Step 2: Convert to fraction form
   127,122.12/190,870.56 = 71,072.10/x
3. Step 3: Cross multiply
   127,122.12x = 190,870.56 × 71,072.10
4. Step 4: Simplify right side
   127,122.12x = 13,565,571,527.38
5. Step 5: Solve for x
   x = 13,565,571,527.38/127,122.12
6. Step 6: Final answer
   x = 106,712.91