Finding the Fourth Proportional to 9,664.84, 13,337.48 and 5,415.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,664.84 : 13,337.48 = 5,415.94 : x
2. Step 2: Convert to fraction form
   9,664.84/13,337.48 = 5,415.94/x
3. Step 3: Cross multiply
   9,664.84x = 13,337.48 × 5,415.94
4. Step 4: Simplify right side
   9,664.84x = 72,234,897.66
5. Step 5: Solve for x
   x = 72,234,897.66/9,664.84
6. Step 6: Final answer
   x = 7,473.99