Finding the Fourth Proportional to 36,131.30, 49,859.16 and 19,997.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,131.30 : 49,859.16 = 19,997.72 : x
2. Step 2: Convert to fraction form
   36,131.30/49,859.16 = 19,997.72/x
3. Step 3: Cross multiply
   36,131.30x = 49,859.16 × 19,997.72
4. Step 4: Simplify right side
   36,131.30x = 997,069,521.12
5. Step 5: Solve for x
   x = 997,069,521.12/36,131.30
6. Step 6: Final answer
   x = 27,595.73