Finding the Fourth Proportional to 127,061.54, 175,353.81 and 72,621.72

Step by Step Solution

1. Step 1: Write the proportion equation
   127,061.54 : 175,353.81 = 72,621.72 : x
2. Step 2: Convert to fraction form
   127,061.54/175,353.81 = 72,621.72/x
3. Step 3: Cross multiply
   127,061.54x = 175,353.81 × 72,621.72
4. Step 4: Simplify right side
   127,061.54x = 12,734,495,290.75
5. Step 5: Solve for x
   x = 12,734,495,290.75/127,061.54
6. Step 6: Final answer
   x = 100,223.05