Finding the Fourth Proportional to 83,647.91, 115,432.67 and 45,921.89

Step by Step Solution

1. Step 1: Write the proportion equation
   83,647.91 : 115,432.67 = 45,921.89 : x
2. Step 2: Convert to fraction form
   83,647.91/115,432.67 = 45,921.89/x
3. Step 3: Cross multiply
   83,647.91x = 115,432.67 × 45,921.89
4. Step 4: Simplify right side
   83,647.91x = 5,300,885,567.37
5. Step 5: Solve for x
   x = 5,300,885,567.37/83,647.91
6. Step 6: Final answer
   x = 63,371.41