Finding the Fourth Proportional to 9,190.00, 12,682.88 and 5,157.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,190.00 : 12,682.88 = 5,157.30 : x
2. Step 2: Convert to fraction form
   9,190.00/12,682.88 = 5,157.30/x
3. Step 3: Cross multiply
   9,190.00x = 12,682.88 × 5,157.30
4. Step 4: Simplify right side
   9,190.00x = 65,409,391.24
5. Step 5: Solve for x
   x = 65,409,391.24/9,190.00
6. Step 6: Final answer
   x = 7,117.46