Finding the Fourth Proportional to 9,830.69, 13,566.53 and 5,354.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,830.69 : 13,566.53 = 5,354.46 : x
2. Step 2: Convert to fraction form
   9,830.69/13,566.53 = 5,354.46/x
3. Step 3: Cross multiply
   9,830.69x = 13,566.53 × 5,354.46
4. Step 4: Simplify right side
   9,830.69x = 72,641,415.45
5. Step 5: Solve for x
   x = 72,641,415.45/9,830.69
6. Step 6: Final answer
   x = 7,389.25