Finding the Fourth Proportional to 39,901.17, 55,064.00 and 21,996.83

Step by Step Solution

1. Step 1: Write the proportion equation
   39,901.17 : 55,064.00 = 21,996.83 : x
2. Step 2: Convert to fraction form
   39,901.17/55,064.00 = 21,996.83/x
3. Step 3: Cross multiply
   39,901.17x = 55,064.00 × 21,996.83
4. Step 4: Simplify right side
   39,901.17x = 1,211,233,061.82
5. Step 5: Solve for x
   x = 1,211,233,061.82/39,901.17
6. Step 6: Final answer
   x = 30,355.83