Finding the Fourth Proportional to 9,499.30, 13,110.32 and 7,137.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.30 : 13,110.32 = 7,137.34 : x
2. Step 2: Convert to fraction form
   9,499.30/13,110.32 = 7,137.34/x
3. Step 3: Cross multiply
   9,499.30x = 13,110.32 × 7,137.34
4. Step 4: Simplify right side
   9,499.30x = 93,572,811.35
5. Step 5: Solve for x
   x = 93,572,811.35/9,499.30
6. Step 6: Final answer
   x = 9,850.50