Finding the Fourth Proportional to 13,935.58, 19,229.94 and 7,647.95

Step by Step Solution

1. Step 1: Write the proportion equation
   13,935.58 : 19,229.94 = 7,647.95 : x
2. Step 2: Convert to fraction form
   13,935.58/19,229.94 = 7,647.95/x
3. Step 3: Cross multiply
   13,935.58x = 19,229.94 × 7,647.95
4. Step 4: Simplify right side
   13,935.58x = 147,069,667.70
5. Step 5: Solve for x
   x = 147,069,667.70/13,935.58
6. Step 6: Final answer
   x = 10,553.54