Finding the Fourth Proportional to 21,913.58, 32,849.56 and 7,112.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,913.58 : 32,849.56 = 7,112.15 : x
2. Step 2: Convert to fraction form
   21,913.58/32,849.56 = 7,112.15/x
3. Step 3: Cross multiply
   21,913.58x = 32,849.56 × 7,112.15
4. Step 4: Simplify right side
   21,913.58x = 233,630,998.15
5. Step 5: Solve for x
   x = 233,630,998.15/21,913.58
6. Step 6: Final answer
   x = 10,661.47