Finding the Fourth Proportional to 39,901.27, 55,061.27 and 21,995.35

Step by Step Solution

1. Step 1: Write the proportion equation
   39,901.27 : 55,061.27 = 21,995.35 : x
2. Step 2: Convert to fraction form
   39,901.27/55,061.27 = 21,995.35/x
3. Step 3: Cross multiply
   39,901.27x = 55,061.27 × 21,995.35
4. Step 4: Simplify right side
   39,901.27x = 1,211,091,905.09
5. Step 5: Solve for x
   x = 1,211,091,905.09/39,901.27
6. Step 6: Final answer
   x = 30,352.21