Finding the Fourth Proportional to 127,328.08, 190,926.42 and 57,147.34

Step by Step Solution

1. Step 1: Write the proportion equation
   127,328.08 : 190,926.42 = 57,147.34 : x
2. Step 2: Convert to fraction form
   127,328.08/190,926.42 = 57,147.34/x
3. Step 3: Cross multiply
   127,328.08x = 190,926.42 × 57,147.34
4. Step 4: Simplify right side
   127,328.08x = 10,910,937,038.72
5. Step 5: Solve for x
   x = 10,910,937,038.72/127,328.08
6. Step 6: Final answer
   x = 85,691.52