Finding the Fourth Proportional to 53,429.72, 80,143.68 and 21,832.84

Step by Step Solution

1. Step 1: Write the proportion equation
   53,429.72 : 80,143.68 = 21,832.84 : x
2. Step 2: Convert to fraction form
   53,429.72/80,143.68 = 21,832.84/x
3. Step 3: Cross multiply
   53,429.72x = 80,143.68 × 21,832.84
4. Step 4: Simplify right side
   53,429.72x = 1,749,764,142.45
5. Step 5: Solve for x
   x = 1,749,764,142.45/53,429.72
6. Step 6: Final answer
   x = 32,748.89