Finding the Fourth Proportional to 52,563.60, 78,885.72 and 21,425.04

Step by Step Solution

1. Step 1: Write the proportion equation
   52,563.60 : 78,885.72 = 21,425.04 : x
2. Step 2: Convert to fraction form
   52,563.60/78,885.72 = 21,425.04/x
3. Step 3: Cross multiply
   52,563.60x = 78,885.72 × 21,425.04
4. Step 4: Simplify right side
   52,563.60x = 1,690,129,706.43
5. Step 5: Solve for x
   x = 1,690,129,706.43/52,563.60
6. Step 6: Final answer
   x = 32,153.99