Finding the Fourth Proportional to 12,172.32, 18,263.69 and 3,853.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,172.32 : 18,263.69 = 3,853.01 : x
2. Step 2: Convert to fraction form
   12,172.32/18,263.69 = 3,853.01/x
3. Step 3: Cross multiply
   12,172.32x = 18,263.69 × 3,853.01
4. Step 4: Simplify right side
   12,172.32x = 70,370,115.28
5. Step 5: Solve for x
   x = 70,370,115.28/12,172.32
6. Step 6: Final answer
   x = 5,781.16