Finding the Fourth Proportional to 12,906,617.43, 17,812,173.15 and 7,400,504.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906,617.43 : 17,812,173.15 = 7,400,504.55 : x
2. Step 2: Convert to fraction form
   12,906,617.43/17,812,173.15 = 7,400,504.55/x
3. Step 3: Cross multiply
   12,906,617.43x = 17,812,173.15 × 7,400,504.55
4. Step 4: Simplify right side
   12,906,617.43x = 131,819,068,441,962.81
5. Step 5: Solve for x
   x = 131,819,068,441,962.81/12,906,617.43
6. Step 6: Final answer
   x = 10,213,293.23