Finding the Fourth Proportional to 13,300.79, 18,349.95 and 7,633.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.79 : 18,349.95 = 7,633.49 : x
2. Step 2: Convert to fraction form
   13,300.79/18,349.95 = 7,633.49/x
3. Step 3: Cross multiply
   13,300.79x = 18,349.95 × 7,633.49
4. Step 4: Simplify right side
   13,300.79x = 140,074,159.83
5. Step 5: Solve for x
   x = 140,074,159.83/13,300.79
6. Step 6: Final answer
   x = 10,531.27