Finding the Fourth Proportional to 9,498.87, 13,099.91 and 7,910.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,498.87 : 13,099.91 = 7,910.76 : x
2. Step 2: Convert to fraction form
   9,498.87/13,099.91 = 7,910.76/x
3. Step 3: Cross multiply
   9,498.87x = 13,099.91 × 7,910.76
4. Step 4: Simplify right side
   9,498.87x = 103,630,244.03
5. Step 5: Solve for x
   x = 103,630,244.03/9,498.87
6. Step 6: Final answer
   x = 10,909.74