Finding the Fourth Proportional to 127,328.33, 190,926.79 and 57,147.59

Step by Step Solution

1. Step 1: Write the proportion equation
   127,328.33 : 190,926.79 = 57,147.59 : x
2. Step 2: Convert to fraction form
   127,328.33/190,926.79 = 57,147.59/x
3. Step 3: Cross multiply
   127,328.33x = 190,926.79 × 57,147.59
4. Step 4: Simplify right side
   127,328.33x = 10,911,005,914.94
5. Step 5: Solve for x
   x = 10,911,005,914.94/127,328.33
6. Step 6: Final answer
   x = 85,691.90