Finding the Fourth Proportional to 13,223.34, 19,816.37 and 7,302.90

Step by Step Solution

1. Step 1: Write the proportion equation
   13,223.34 : 19,816.37 = 7,302.90 : x
2. Step 2: Convert to fraction form
   13,223.34/19,816.37 = 7,302.90/x
3. Step 3: Cross multiply
   13,223.34x = 19,816.37 × 7,302.90
4. Step 4: Simplify right side
   13,223.34x = 144,716,832.88
5. Step 5: Solve for x
   x = 144,716,832.88/13,223.34
6. Step 6: Final answer
   x = 10,944.05