Finding the Fourth Proportional to 9,870.21, 13,614.53 and 5,888.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.21 : 13,614.53 = 5,888.25 : x
2. Step 2: Convert to fraction form
   9,870.21/13,614.53 = 5,888.25/x
3. Step 3: Cross multiply
   9,870.21x = 13,614.53 × 5,888.25
4. Step 4: Simplify right side
   9,870.21x = 80,165,726.83
5. Step 5: Solve for x
   x = 80,165,726.83/9,870.21
6. Step 6: Final answer
   x = 8,121.99