Finding the Fourth Proportional to 9,655.03, 13,320.84 and 5,405.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,655.03 : 13,320.84 = 5,405.46 : x
2. Step 2: Convert to fraction form
   9,655.03/13,320.84 = 5,405.46/x
3. Step 3: Cross multiply
   9,655.03x = 13,320.84 × 5,405.46
4. Step 4: Simplify right side
   9,655.03x = 72,005,301.09
5. Step 5: Solve for x
   x = 72,005,301.09/9,655.03
6. Step 6: Final answer
   x = 7,457.80