Finding the Fourth Proportional to 38,290.56, 52,845.72 and 21,523.56

Step by Step Solution

1. Step 1: Write the proportion equation
   38,290.56 : 52,845.72 = 21,523.56 : x
2. Step 2: Convert to fraction form
   38,290.56/52,845.72 = 21,523.56/x
3. Step 3: Cross multiply
   38,290.56x = 52,845.72 × 21,523.56
4. Step 4: Simplify right side
   38,290.56x = 1,137,428,025.16
5. Step 5: Solve for x
   x = 1,137,428,025.16/38,290.56
6. Step 6: Final answer
   x = 29,705.18