Finding the Fourth Proportional to 9,064.99, 12,510.18 and 5,085.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,064.99 : 12,510.18 = 5,085.79 : x
2. Step 2: Convert to fraction form
   9,064.99/12,510.18 = 5,085.79/x
3. Step 3: Cross multiply
   9,064.99x = 12,510.18 × 5,085.79
4. Step 4: Simplify right side
   9,064.99x = 63,624,148.34
5. Step 5: Solve for x
   x = 63,624,148.34/9,064.99
6. Step 6: Final answer
   x = 7,018.67