Finding the Fourth Proportional to 83,647.28, 115,433.64 and 45,921.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,647.28 : 115,433.64 = 45,921.50 : x
2. Step 2: Convert to fraction form
   83,647.28/115,433.64 = 45,921.50/x
3. Step 3: Cross multiply
   83,647.28x = 115,433.64 × 45,921.50
4. Step 4: Simplify right side
   83,647.28x = 5,300,885,899.26
5. Step 5: Solve for x
   x = 5,300,885,899.26/83,647.28
6. Step 6: Final answer
   x = 63,371.89