Finding the Fourth Proportional to 12,948,806.42, 17,869,350.16 and 7,147,586.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948,806.42 : 17,869,350.16 = 7,147,586.62 : x
2. Step 2: Convert to fraction form
   12,948,806.42/17,869,350.16 = 7,147,586.62/x
3. Step 3: Cross multiply
   12,948,806.42x = 17,869,350.16 × 7,147,586.62
4. Step 4: Simplify right side
   12,948,806.42x = 127,722,728,111,710.86
5. Step 5: Solve for x
   x = 127,722,728,111,710.86/12,948,806.42
6. Step 6: Final answer
   x = 9,863,668.05