Finding the Fourth Proportional to 12,718.42, 19,080.06 and 3,953.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,718.42 : 19,080.06 = 3,953.01 : x
2. Step 2: Convert to fraction form
   12,718.42/19,080.06 = 3,953.01/x
3. Step 3: Cross multiply
   12,718.42x = 19,080.06 × 3,953.01
4. Step 4: Simplify right side
   12,718.42x = 75,423,667.98
5. Step 5: Solve for x
   x = 75,423,667.98/12,718.42
6. Step 6: Final answer
   x = 5,930.27