Finding the Fourth Proportional to 21,438.51, 32,158.61 and 5,856.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,438.51 : 32,158.61 = 5,856.09 : x
2. Step 2: Convert to fraction form
   21,438.51/32,158.61 = 5,856.09/x
3. Step 3: Cross multiply
   21,438.51x = 32,158.61 × 5,856.09
4. Step 4: Simplify right side
   21,438.51x = 188,323,714.43
5. Step 5: Solve for x
   x = 188,323,714.43/21,438.51
6. Step 6: Final answer
   x = 8,784.37