Finding the Fourth Proportional to 10,774.06, 14,851.26 and 9,870.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,774.06 : 14,851.26 = 9,870.10 : x
2. Step 2: Convert to fraction form
   10,774.06/14,851.26 = 9,870.10/x
3. Step 3: Cross multiply
   10,774.06x = 14,851.26 × 9,870.10
4. Step 4: Simplify right side
   10,774.06x = 146,583,421.33
5. Step 5: Solve for x
   x = 146,583,421.33/10,774.06
6. Step 6: Final answer
   x = 13,605.22