Finding the Fourth Proportional to 36,129.32, 49,866.24 and 21,986.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,129.32 : 49,866.24 = 21,986.72 : x
2. Step 2: Convert to fraction form
   36,129.32/49,866.24 = 21,986.72/x
3. Step 3: Cross multiply
   36,129.32x = 49,866.24 × 21,986.72
4. Step 4: Simplify right side
   36,129.32x = 1,096,395,056.33
5. Step 5: Solve for x
   x = 1,096,395,056.33/36,129.32
6. Step 6: Final answer
   x = 30,346.41