Finding the Fourth Proportional to 37,724.16, 52,061.88 and 21,812.64

Step by Step Solution

1. Step 1: Write the proportion equation
   37,724.16 : 52,061.88 = 21,812.64 : x
2. Step 2: Convert to fraction form
   37,724.16/52,061.88 = 21,812.64/x
3. Step 3: Cross multiply
   37,724.16x = 52,061.88 × 21,812.64
4. Step 4: Simplify right side
   37,724.16x = 1,135,607,046.16
5. Step 5: Solve for x
   x = 1,135,607,046.16/37,724.16
6. Step 6: Final answer
   x = 30,102.91