Finding the Fourth Proportional to 12,975.02, 19,462.56 and 3,615.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,975.02 : 19,462.56 = 3,615.06 : x
2. Step 2: Convert to fraction form
   12,975.02/19,462.56 = 3,615.06/x
3. Step 3: Cross multiply
   12,975.02x = 19,462.56 × 3,615.06
4. Step 4: Simplify right side
   12,975.02x = 70,358,322.15
5. Step 5: Solve for x
   x = 70,358,322.15/12,975.02
6. Step 6: Final answer
   x = 5,422.60