Finding the Fourth Proportional to 13,009.16, 19,517.34 and 4,242.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,009.16 : 19,517.34 = 4,242.98 : x
2. Step 2: Convert to fraction form
   13,009.16/19,517.34 = 4,242.98/x
3. Step 3: Cross multiply
   13,009.16x = 19,517.34 × 4,242.98
4. Step 4: Simplify right side
   13,009.16x = 82,811,683.27
5. Step 5: Solve for x
   x = 82,811,683.27/13,009.16
6. Step 6: Final answer
   x = 6,365.64