Finding the Fourth Proportional to 12,831,287.76, 17,707,176.72 and 7,030,289.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,831,287.76 : 17,707,176.72 = 7,030,289.28 : x
2. Step 2: Convert to fraction form
   12,831,287.76/17,707,176.72 = 7,030,289.28/x
3. Step 3: Cross multiply
   12,831,287.76x = 17,707,176.72 × 7,030,289.28
4. Step 4: Simplify right side
   12,831,287.76x = 124,486,574,673,681.56
5. Step 5: Solve for x
   x = 124,486,574,673,681.56/12,831,287.76
6. Step 6: Final answer
   x = 9,701,798.99