Finding the Fourth Proportional to 73,921.89, 101,986.90 and 42,082.81

Step by Step Solution

1. Step 1: Write the proportion equation
   73,921.89 : 101,986.90 = 42,082.81 : x
2. Step 2: Convert to fraction form
   73,921.89/101,986.90 = 42,082.81/x
3. Step 3: Cross multiply
   73,921.89x = 101,986.90 × 42,082.81
4. Step 4: Simplify right side
   73,921.89x = 4,291,895,335.19
5. Step 5: Solve for x
   x = 4,291,895,335.19/73,921.89
6. Step 6: Final answer
   x = 58,059.87