Finding the Fourth Proportional to 12,484,890.50, 17,228,620.50 and 7,841,102.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,484,890.50 : 17,228,620.50 = 7,841,102.18 : x
2. Step 2: Convert to fraction form
   12,484,890.50/17,228,620.50 = 7,841,102.18/x
3. Step 3: Cross multiply
   12,484,890.50x = 17,228,620.50 × 7,841,102.18
4. Step 4: Simplify right side
   12,484,890.50x = 135,091,373,760,942.69
5. Step 5: Solve for x
   x = 135,091,373,760,942.69/12,484,890.50
6. Step 6: Final answer
   x = 10,820,389.15