Finding the Fourth Proportional to 146,500.72, 202,170.32 and 79,432.72

Step by Step Solution

1. Step 1: Write the proportion equation
   146,500.72 : 202,170.32 = 79,432.72 : x
2. Step 2: Convert to fraction form
   146,500.72/202,170.32 = 79,432.72/x
3. Step 3: Cross multiply
   146,500.72x = 202,170.32 × 79,432.72
4. Step 4: Simplify right side
   146,500.72x = 16,058,938,420.87
5. Step 5: Solve for x
   x = 16,058,938,420.87/146,500.72
6. Step 6: Final answer
   x = 109,616.79