Finding the Fourth Proportional to 53,321.78, 73,593.50 and 30,658.99

Step by Step Solution

1. Step 1: Write the proportion equation
   53,321.78 : 73,593.50 = 30,658.99 : x
2. Step 2: Convert to fraction form
   53,321.78/73,593.50 = 30,658.99/x
3. Step 3: Cross multiply
   53,321.78x = 73,593.50 × 30,658.99
4. Step 4: Simplify right side
   53,321.78x = 2,256,302,227.27
5. Step 5: Solve for x
   x = 2,256,302,227.27/53,321.78
6. Step 6: Final answer
   x = 42,314.84