Finding the Fourth Proportional to 37,724.58, 52,069.28 and 21,818.25

Step by Step Solution

1. Step 1: Write the proportion equation
   37,724.58 : 52,069.28 = 21,818.25 : x
2. Step 2: Convert to fraction form
   37,724.58/52,069.28 = 21,818.25/x
3. Step 3: Cross multiply
   37,724.58x = 52,069.28 × 21,818.25
4. Step 4: Simplify right side
   37,724.58x = 1,136,060,459.27
5. Step 5: Solve for x
   x = 1,136,060,459.27/37,724.58
6. Step 6: Final answer
   x = 30,114.60