Finding the Fourth Proportional to 12,155,115.76, 18,225,942.52 and 4,971,694

Step by Step Solution

1. Step 1: Write the proportion equation
   12,155,115.76 : 18,225,942.52 = 4,971,694 : x
2. Step 2: Convert to fraction form
   12,155,115.76/18,225,942.52 = 4,971,694/x
3. Step 3: Cross multiply
   12,155,115.76x = 18,225,942.52 × 4,971,694
4. Step 4: Simplify right side
   12,155,115.76x = 90,613,809,071,028.88
5. Step 5: Solve for x
   x = 90,613,809,071,028.88/12,155,115.76
6. Step 6: Final answer
   x = 7,454,787.83