Finding the Fourth Proportional to 13,268.68, 19,817.18 and 10,498.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,268.68 : 19,817.18 = 10,498.48 : x
2. Step 2: Convert to fraction form
   13,268.68/19,817.18 = 10,498.48/x
3. Step 3: Cross multiply
   13,268.68x = 19,817.18 × 10,498.48
4. Step 4: Simplify right side
   13,268.68x = 208,050,267.89
5. Step 5: Solve for x
   x = 208,050,267.89/13,268.68
6. Step 6: Final answer
   x = 15,679.80