Finding the Fourth Proportional to 52,021.55, 71,784.24 and 30,213.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,021.55 : 71,784.24 = 30,213.56 : x
2. Step 2: Convert to fraction form
   52,021.55/71,784.24 = 30,213.56/x
3. Step 3: Cross multiply
   52,021.55x = 71,784.24 × 30,213.56
4. Step 4: Simplify right side
   52,021.55x = 2,168,857,373.86
5. Step 5: Solve for x
   x = 2,168,857,373.86/52,021.55
6. Step 6: Final answer
   x = 41,691.52