Finding the Fourth Proportional to 30,114.42, 41,571.60 and 21,507.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,114.42 : 41,571.60 = 21,507.06 : x
2. Step 2: Convert to fraction form
   30,114.42/41,571.60 = 21,507.06/x
3. Step 3: Cross multiply
   30,114.42x = 41,571.60 × 21,507.06
4. Step 4: Simplify right side
   30,114.42x = 894,082,895.50
5. Step 5: Solve for x
   x = 894,082,895.50/30,114.42
6. Step 6: Final answer
   x = 29,689.53