Finding the Fourth Proportional to 36,128.30, 49,855.02 and 19,994.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,128.30 : 49,855.02 = 19,994.72 : x
2. Step 2: Convert to fraction form
   36,128.30/49,855.02 = 19,994.72/x
3. Step 3: Cross multiply
   36,128.30x = 49,855.02 × 19,994.72
4. Step 4: Simplify right side
   36,128.30x = 996,837,165.49
5. Step 5: Solve for x
   x = 996,837,165.49/36,128.30
6. Step 6: Final answer
   x = 27,591.59