Finding the Fourth Proportional to 13,160,212.56, 18,161,152.56 and 7,358,996.40

Step by Step Solution

1. Step 1: Write the proportion equation
   13,160,212.56 : 18,161,152.56 = 7,358,996.40 : x
2. Step 2: Convert to fraction form
   13,160,212.56/18,161,152.56 = 7,358,996.40/x
3. Step 3: Cross multiply
   13,160,212.56x = 18,161,152.56 × 7,358,996.40
4. Step 4: Simplify right side
   13,160,212.56x = 133,647,856,308,890.78
5. Step 5: Solve for x
   x = 133,647,856,308,890.78/13,160,212.56
6. Step 6: Final answer
   x = 10,155,448.15