Finding the Fourth Proportional to 115,638.72, 173,144.88 and 60,118.08

Step by Step Solution

1. Step 1: Write the proportion equation
   115,638.72 : 173,144.88 = 60,118.08 : x
2. Step 2: Convert to fraction form
   115,638.72/173,144.88 = 60,118.08/x
3. Step 3: Cross multiply
   115,638.72x = 173,144.88 × 60,118.08
4. Step 4: Simplify right side
   115,638.72x = 10,409,137,747.43
5. Step 5: Solve for x
   x = 10,409,137,747.43/115,638.72
6. Step 6: Final answer
   x = 90,014.29