Finding the Fourth Proportional to 127,146.72, 175,456.56 and 70,557.60

Step by Step Solution

1. Step 1: Write the proportion equation
   127,146.72 : 175,456.56 = 70,557.60 : x
2. Step 2: Convert to fraction form
   127,146.72/175,456.56 = 70,557.60/x
3. Step 3: Cross multiply
   127,146.72x = 175,456.56 × 70,557.60
4. Step 4: Simplify right side
   127,146.72x = 12,379,793,777.86
5. Step 5: Solve for x
   x = 12,379,793,777.86/127,146.72
6. Step 6: Final answer
   x = 97,366.21