Finding the Fourth Proportional to 11,428.84, 15,768.30 and 7,448.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,428.84 : 15,768.30 = 7,448.50 : x
2. Step 2: Convert to fraction form
   11,428.84/15,768.30 = 7,448.50/x
3. Step 3: Cross multiply
   11,428.84x = 15,768.30 × 7,448.50
4. Step 4: Simplify right side
   11,428.84x = 117,450,182.55
5. Step 5: Solve for x
   x = 117,450,182.55/11,428.84
6. Step 6: Final answer
   x = 10,276.65