Finding the Fourth Proportional to 9,300.02, 12,758.11 and 9,019.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.02 : 12,758.11 = 9,019.08 : x
2. Step 2: Convert to fraction form
   9,300.02/12,758.11 = 9,019.08/x
3. Step 3: Cross multiply
   9,300.02x = 12,758.11 × 9,019.08
4. Step 4: Simplify right side
   9,300.02x = 115,066,392.19
5. Step 5: Solve for x
   x = 115,066,392.19/9,300.02
6. Step 6: Final answer
   x = 12,372.71