Finding the Fourth Proportional to 127,215.27, 175,539.69 and 76,216.59

Step by Step Solution

1. Step 1: Write the proportion equation
   127,215.27 : 175,539.69 = 76,216.59 : x
2. Step 2: Convert to fraction form
   127,215.27/175,539.69 = 76,216.59/x
3. Step 3: Cross multiply
   127,215.27x = 175,539.69 × 76,216.59
4. Step 4: Simplify right side
   127,215.27x = 13,379,036,581.46
5. Step 5: Solve for x
   x = 13,379,036,581.46/127,215.27
6. Step 6: Final answer
   x = 105,168.48