Finding the Fourth Proportional to 65,992.77, 99,004.55 and 21,616.83

Step by Step Solution

1. Step 1: Write the proportion equation
   65,992.77 : 99,004.55 = 21,616.83 : x
2. Step 2: Convert to fraction form
   65,992.77/99,004.55 = 21,616.83/x
3. Step 3: Cross multiply
   65,992.77x = 99,004.55 × 21,616.83
4. Step 4: Simplify right side
   65,992.77x = 2,140,164,418.49
5. Step 5: Solve for x
   x = 2,140,164,418.49/65,992.77
6. Step 6: Final answer
   x = 32,430.29