Finding the Fourth Proportional to 10,820.03, 14,898.34 and 9,223.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,820.03 : 14,898.34 = 9,223.10 : x
2. Step 2: Convert to fraction form
   10,820.03/14,898.34 = 9,223.10/x
3. Step 3: Cross multiply
   10,820.03x = 14,898.34 × 9,223.10
4. Step 4: Simplify right side
   10,820.03x = 137,408,795.74
5. Step 5: Solve for x
   x = 137,408,795.74/10,820.03
6. Step 6: Final answer
   x = 12,699.48