Finding the Fourth Proportional to 13,008.42, 19,503.78 and 5,106

Step by Step Solution

1. Step 1: Write the proportion equation
   13,008.42 : 19,503.78 = 5,106 : x
2. Step 2: Convert to fraction form
   13,008.42/19,503.78 = 5,106/x
3. Step 3: Cross multiply
   13,008.42x = 19,503.78 × 5,106
4. Step 4: Simplify right side
   13,008.42x = 99,586,300.68
5. Step 5: Solve for x
   x = 99,586,300.68/13,008.42
6. Step 6: Final answer
   x = 7,655.53