Finding the Fourth Proportional to 13,550,422.47, 18,699,912.69 and 7,355,723.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,550,422.47 : 18,699,912.69 = 7,355,723.10 : x
2. Step 2: Convert to fraction form
   13,550,422.47/18,699,912.69 = 7,355,723.10/x
3. Step 3: Cross multiply
   13,550,422.47x = 18,699,912.69 × 7,355,723.10
4. Step 4: Simplify right side
   13,550,422.47x = 137,551,379,644,107.52
5. Step 5: Solve for x
   x = 137,551,379,644,107.52/13,550,422.47
6. Step 6: Final answer
   x = 10,151,076.84