Finding the Fourth Proportional to 127,112.55, 190,857.15 and 71,064.60

Step by Step Solution

1. Step 1: Write the proportion equation
   127,112.55 : 190,857.15 = 71,064.60 : x
2. Step 2: Convert to fraction form
   127,112.55/190,857.15 = 71,064.60/x
3. Step 3: Cross multiply
   127,112.55x = 190,857.15 × 71,064.60
4. Step 4: Simplify right side
   127,112.55x = 13,563,187,021.89
5. Step 5: Solve for x
   x = 13,563,187,021.89/127,112.55
6. Step 6: Final answer
   x = 106,702.19