Finding the Fourth Proportional to 13,987.09, 19,301.91 and 7,613.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,987.09 : 19,301.91 = 7,613.83 : x
2. Step 2: Convert to fraction form
   13,987.09/19,301.91 = 7,613.83/x
3. Step 3: Cross multiply
   13,987.09x = 19,301.91 × 7,613.83
4. Step 4: Simplify right side
   13,987.09x = 146,961,475.16
5. Step 5: Solve for x
   x = 146,961,475.16/13,987.09
6. Step 6: Final answer
   x = 10,506.94