Finding the Fourth Proportional to 13,241.16, 19,869.94 and 7,697.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,241.16 : 19,869.94 = 7,697.12 : x
2. Step 2: Convert to fraction form
   13,241.16/19,869.94 = 7,697.12/x
3. Step 3: Cross multiply
   13,241.16x = 19,869.94 × 7,697.12
4. Step 4: Simplify right side
   13,241.16x = 152,941,312.57
5. Step 5: Solve for x
   x = 152,941,312.57/13,241.16
6. Step 6: Final answer
   x = 11,550.45