Finding the Fourth Proportional to 127,019.31, 175,142.11 and 103,975.83

Step by Step Solution

1. Step 1: Write the proportion equation
   127,019.31 : 175,142.11 = 103,975.83 : x
2. Step 2: Convert to fraction form
   127,019.31/175,142.11 = 103,975.83/x
3. Step 3: Cross multiply
   127,019.31x = 175,142.11 × 103,975.83
4. Step 4: Simplify right side
   127,019.31x = 18,210,546,255.20
5. Step 5: Solve for x
   x = 18,210,546,255.20/127,019.31
6. Step 6: Final answer
   x = 143,368.33