Finding the Fourth Proportional to 9,870.93, 14,809.13 and 5,491.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.93 : 14,809.13 = 5,491.46 : x
2. Step 2: Convert to fraction form
   9,870.93/14,809.13 = 5,491.46/x
3. Step 3: Cross multiply
   9,870.93x = 14,809.13 × 5,491.46
4. Step 4: Simplify right side
   9,870.93x = 81,323,745.03
5. Step 5: Solve for x
   x = 81,323,745.03/9,870.93
6. Step 6: Final answer
   x = 8,238.71