Finding the Fourth Proportional to 13,538,414.72, 18,682,902.50 and 7,343,446.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,538,414.72 : 18,682,902.50 = 7,343,446.02 : x
2. Step 2: Convert to fraction form
   13,538,414.72/18,682,902.50 = 7,343,446.02/x
3. Step 3: Cross multiply
   13,538,414.72x = 18,682,902.50 × 7,343,446.02
4. Step 4: Simplify right side
   13,538,414.72x = 137,196,886,005,673.05
5. Step 5: Solve for x
   x = 137,196,886,005,673.05/13,538,414.72
6. Step 6: Final answer
   x = 10,133,895.94