Finding the Fourth Proportional to 9,901.76, 13,656.33 and 7,064.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,901.76 : 13,656.33 = 7,064.12 : x
2. Step 2: Convert to fraction form
   9,901.76/13,656.33 = 7,064.12/x
3. Step 3: Cross multiply
   9,901.76x = 13,656.33 × 7,064.12
4. Step 4: Simplify right side
   9,901.76x = 96,469,988.02
5. Step 5: Solve for x
   x = 96,469,988.02/9,901.76
6. Step 6: Final answer
   x = 9,742.72