Finding the Fourth Proportional to 12,183,300.72, 16,820,597.90 and 7,839,935.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,183,300.72 : 16,820,597.90 = 7,839,935.12 : x
2. Step 2: Convert to fraction form
   12,183,300.72/16,820,597.90 = 7,839,935.12/x
3. Step 3: Cross multiply
   12,183,300.72x = 16,820,597.90 × 7,839,935.12
4. Step 4: Simplify right side
   12,183,300.72x = 131,872,396,277,259.58
5. Step 5: Solve for x
   x = 131,872,396,277,259.58/12,183,300.72
6. Step 6: Final answer
   x = 10,824,028.67