Finding the Fourth Proportional to 13,106.10, 19,667.25 and 5,314.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,106.10 : 19,667.25 = 5,314.98 : x
2. Step 2: Convert to fraction form
   13,106.10/19,667.25 = 5,314.98/x
3. Step 3: Cross multiply
   13,106.10x = 19,667.25 × 5,314.98
4. Step 4: Simplify right side
   13,106.10x = 104,531,040.41
5. Step 5: Solve for x
   x = 104,531,040.41/13,106.10
6. Step 6: Final answer
   x = 7,975.75