Finding the Fourth Proportional to 21,393.96, 32,093.82 and 7,539.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,393.96 : 32,093.82 = 7,539.72 : x
2. Step 2: Convert to fraction form
   21,393.96/32,093.82 = 7,539.72/x
3. Step 3: Cross multiply
   21,393.96x = 32,093.82 × 7,539.72
4. Step 4: Simplify right side
   21,393.96x = 241,978,416.53
5. Step 5: Solve for x
   x = 241,978,416.53/21,393.96
6. Step 6: Final answer
   x = 11,310.59