Finding the Fourth Proportional to 13,622.31, 18,796.86 and 7,653.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,622.31 : 18,796.86 = 7,653.69 : x
2. Step 2: Convert to fraction form
   13,622.31/18,796.86 = 7,653.69/x
3. Step 3: Cross multiply
   13,622.31x = 18,796.86 × 7,653.69
4. Step 4: Simplify right side
   13,622.31x = 143,865,339.41
5. Step 5: Solve for x
   x = 143,865,339.41/13,622.31
6. Step 6: Final answer
   x = 10,561.01