Finding the Fourth Proportional to 9,860.81, 13,607.33 and 5,384.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,860.81 : 13,607.33 = 5,384.34 : x
2. Step 2: Convert to fraction form
   9,860.81/13,607.33 = 5,384.34/x
3. Step 3: Cross multiply
   9,860.81x = 13,607.33 × 5,384.34
4. Step 4: Simplify right side
   9,860.81x = 73,266,464.29
5. Step 5: Solve for x
   x = 73,266,464.29/9,860.81
6. Step 6: Final answer
   x = 7,430.07