Finding the Fourth Proportional to 17,112.36, 25,670.16 and 5,427.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,112.36 : 25,670.16 = 5,427.30 : x
2. Step 2: Convert to fraction form
   17,112.36/25,670.16 = 5,427.30/x
3. Step 3: Cross multiply
   17,112.36x = 25,670.16 × 5,427.30
4. Step 4: Simplify right side
   17,112.36x = 139,319,659.37
5. Step 5: Solve for x
   x = 139,319,659.37/17,112.36
6. Step 6: Final answer
   x = 8,141.46