Finding the Fourth Proportional to 13,143,087.36, 18,137,460.78 and 7,341,869.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,143,087.36 : 18,137,460.78 = 7,341,869.52 : x
2. Step 2: Convert to fraction form
   13,143,087.36/18,137,460.78 = 7,341,869.52/x
3. Step 3: Cross multiply
   13,143,087.36x = 18,137,460.78 × 7,341,869.52
4. Step 4: Simplify right side
   13,143,087.36x = 133,162,870,470,877.42
5. Step 5: Solve for x
   x = 133,162,870,470,877.42/13,143,087.36
6. Step 6: Final answer
   x = 10,131,780.06