Finding the Fourth Proportional to 35,896.77, 49,535.28 and 19,980.81

Step by Step Solution

1. Step 1: Write the proportion equation
   35,896.77 : 49,535.28 = 19,980.81 : x
2. Step 2: Convert to fraction form
   35,896.77/49,535.28 = 19,980.81/x
3. Step 3: Cross multiply
   35,896.77x = 49,535.28 × 19,980.81
4. Step 4: Simplify right side
   35,896.77x = 989,755,017.98
5. Step 5: Solve for x
   x = 989,755,017.98/35,896.77
6. Step 6: Final answer
   x = 27,572.26