Finding the Fourth Proportional to 13,016.64, 19,526.86 and 4,129

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.64 : 19,526.86 = 4,129 : x
2. Step 2: Convert to fraction form
   13,016.64/19,526.86 = 4,129/x
3. Step 3: Cross multiply
   13,016.64x = 19,526.86 × 4,129
4. Step 4: Simplify right side
   13,016.64x = 80,626,404.94
5. Step 5: Solve for x
   x = 80,626,404.94/13,016.64
6. Step 6: Final answer
   x = 6,194.11