Finding the Fourth Proportional to 13,922.34, 19,213.30 and 7,634.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,922.34 : 19,213.30 = 7,634.72 : x
2. Step 2: Convert to fraction form
   13,922.34/19,213.30 = 7,634.72/x
3. Step 3: Cross multiply
   13,922.34x = 19,213.30 × 7,634.72
4. Step 4: Simplify right side
   13,922.34x = 146,688,165.78
5. Step 5: Solve for x
   x = 146,688,165.78/13,922.34
6. Step 6: Final answer
   x = 10,536.17