Finding the Fourth Proportional to 127,055.18, 175,333.20 and 72,609.86

Step by Step Solution

1. Step 1: Write the proportion equation
   127,055.18 : 175,333.20 = 72,609.86 : x
2. Step 2: Convert to fraction form
   127,055.18/175,333.20 = 72,609.86/x
3. Step 3: Cross multiply
   127,055.18x = 175,333.20 × 72,609.86
4. Step 4: Simplify right side
   127,055.18x = 12,730,919,105.35
5. Step 5: Solve for x
   x = 12,730,919,105.35/127,055.18
6. Step 6: Final answer
   x = 100,199.92