Finding the Fourth Proportional to 16,470,784.72, 22,729,685.10 and 9,129,091.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,470,784.72 : 22,729,685.10 = 9,129,091.33 : x
2. Step 2: Convert to fraction form
   16,470,784.72/22,729,685.10 = 9,129,091.33/x
3. Step 3: Cross multiply
   16,470,784.72x = 22,729,685.10 × 9,129,091.33
4. Step 4: Simplify right side
   16,470,784.72x = 207,501,371,180,040.19
5. Step 5: Solve for x
   x = 207,501,371,180,040.19/16,470,784.72
6. Step 6: Final answer
   x = 12,598,147.25