Finding the Fourth Proportional to 10,111.48, 13,947.50 and 6,962.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111.48 : 13,947.50 = 6,962.20 : x
2. Step 2: Convert to fraction form
   10,111.48/13,947.50 = 6,962.20/x
3. Step 3: Cross multiply
   10,111.48x = 13,947.50 × 6,962.20
4. Step 4: Simplify right side
   10,111.48x = 97,105,284.50
5. Step 5: Solve for x
   x = 97,105,284.50/10,111.48
6. Step 6: Final answer
   x = 9,603.47