Finding the Fourth Proportional to 35,991.63, 49,672.31 and 20,081.61

Step by Step Solution

1. Step 1: Write the proportion equation
   35,991.63 : 49,672.31 = 20,081.61 : x
2. Step 2: Convert to fraction form
   35,991.63/49,672.31 = 20,081.61/x
3. Step 3: Cross multiply
   35,991.63x = 49,672.31 × 20,081.61
4. Step 4: Simplify right side
   35,991.63x = 997,499,856.81
5. Step 5: Solve for x
   x = 997,499,856.81/35,991.63
6. Step 6: Final answer
   x = 27,714.77