Finding the Fourth Proportional to 9,233,136, 12,742,387.40 and 5,103,078.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,233,136 : 12,742,387.40 = 5,103,078.30 : x
2. Step 2: Convert to fraction form
   9,233,136/12,742,387.40 = 5,103,078.30/x
3. Step 3: Cross multiply
   9,233,136x = 12,742,387.40 × 5,103,078.30
4. Step 4: Simplify right side
   9,233,136x = 65,025,400,631,133.42
5. Step 5: Solve for x
   x = 65,025,400,631,133.42/9,233,136
6. Step 6: Final answer
   x = 7,042,612.68