Finding the Fourth Proportional to 13,085.21, 19,636.14 and 4,764.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,085.21 : 19,636.14 = 4,764.42 : x
2. Step 2: Convert to fraction form
   13,085.21/19,636.14 = 4,764.42/x
3. Step 3: Cross multiply
   13,085.21x = 19,636.14 × 4,764.42
4. Step 4: Simplify right side
   13,085.21x = 93,554,818.14
5. Step 5: Solve for x
   x = 93,554,818.14/13,085.21
6. Step 6: Final answer
   x = 7,149.66