Finding the Fourth Proportional to 21,898.46, 32,848.50 and 7,109.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,898.46 : 32,848.50 = 7,109.48 : x
2. Step 2: Convert to fraction form
   21,898.46/32,848.50 = 7,109.48/x
3. Step 3: Cross multiply
   21,898.46x = 32,848.50 × 7,109.48
4. Step 4: Simplify right side
   21,898.46x = 233,535,753.78
5. Step 5: Solve for x
   x = 233,535,753.78/21,898.46
6. Step 6: Final answer
   x = 10,664.48