Finding the Fourth Proportional to 13,910.35, 19,196.15 and 7,536.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,910.35 : 19,196.15 = 7,536.80 : x
2. Step 2: Convert to fraction form
   13,910.35/19,196.15 = 7,536.80/x
3. Step 3: Cross multiply
   13,910.35x = 19,196.15 × 7,536.80
4. Step 4: Simplify right side
   13,910.35x = 144,677,543.32
5. Step 5: Solve for x
   x = 144,677,543.32/13,910.35
6. Step 6: Final answer
   x = 10,400.71