Finding the Fourth Proportional to 90,016.79, 124,219.37 and 51,773.45

Step by Step Solution

1. Step 1: Write the proportion equation
   90,016.79 : 124,219.37 = 51,773.45 : x
2. Step 2: Convert to fraction form
   90,016.79/124,219.37 = 51,773.45/x
3. Step 3: Cross multiply
   90,016.79x = 124,219.37 × 51,773.45
4. Step 4: Simplify right side
   90,016.79x = 6,431,265,082.86
5. Step 5: Solve for x
   x = 6,431,265,082.86/90,016.79
6. Step 6: Final answer
   x = 71,445.17