Finding the Fourth Proportional to 9,858.67, 13,604.61 and 5,382.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,858.67 : 13,604.61 = 5,382.34 : x
2. Step 2: Convert to fraction form
   9,858.67/13,604.61 = 5,382.34/x
3. Step 3: Cross multiply
   9,858.67x = 13,604.61 × 5,382.34
4. Step 4: Simplify right side
   9,858.67x = 73,224,636.59
5. Step 5: Solve for x
   x = 73,224,636.59/9,858.67
6. Step 6: Final answer
   x = 7,427.44