Finding the Fourth Proportional to 21,199.50, 31,813.83 and 7,348.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,199.50 : 31,813.83 = 7,348.50 : x
2. Step 2: Convert to fraction form
   21,199.50/31,813.83 = 7,348.50/x
3. Step 3: Cross multiply
   21,199.50x = 31,813.83 × 7,348.50
4. Step 4: Simplify right side
   21,199.50x = 233,783,929.76
5. Step 5: Solve for x
   x = 233,783,929.76/21,199.50
6. Step 6: Final answer
   x = 11,027.80