Finding the Fourth Proportional to 13,047.06, 19,570.52 and 3,186.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.06 : 19,570.52 = 3,186.39 : x
2. Step 2: Convert to fraction form
   13,047.06/19,570.52 = 3,186.39/x
3. Step 3: Cross multiply
   13,047.06x = 19,570.52 × 3,186.39
4. Step 4: Simplify right side
   13,047.06x = 62,359,195.44
5. Step 5: Solve for x
   x = 62,359,195.44/13,047.06
6. Step 6: Final answer
   x = 4,779.56