Finding the Fourth Proportional to 13,100.10, 19,658.25 and 5,308.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.10 : 19,658.25 = 5,308.98 : x
2. Step 2: Convert to fraction form
   13,100.10/19,658.25 = 5,308.98/x
3. Step 3: Cross multiply
   13,100.10x = 19,658.25 × 5,308.98
4. Step 4: Simplify right side
   13,100.10x = 104,365,256.09
5. Step 5: Solve for x
   x = 104,365,256.09/13,100.10
6. Step 6: Final answer
   x = 7,966.75