Finding the Fourth Proportional to 13,736.12, 18,955.86 and 7,448.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,736.12 : 18,955.86 = 7,448.50 : x
2. Step 2: Convert to fraction form
   13,736.12/18,955.86 = 7,448.50/x
3. Step 3: Cross multiply
   13,736.12x = 18,955.86 × 7,448.50
4. Step 4: Simplify right side
   13,736.12x = 141,192,628.43
5. Step 5: Solve for x
   x = 141,192,628.43/13,736.12
6. Step 6: Final answer
   x = 10,278.93