Finding the Fourth Proportional to 11,561.69, 17,331.12 and 4,537.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,561.69 : 17,331.12 = 4,537.31 : x
2. Step 2: Convert to fraction form
   11,561.69/17,331.12 = 4,537.31/x
3. Step 3: Cross multiply
   11,561.69x = 17,331.12 × 4,537.31
4. Step 4: Simplify right side
   11,561.69x = 78,636,577.43
5. Step 5: Solve for x
   x = 78,636,577.43/11,561.69
6. Step 6: Final answer
   x = 6,801.48