Finding the Fourth Proportional to 12,942,601.67, 17,861,162.67 and 7,141,757.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942,601.67 : 17,861,162.67 = 7,141,757.76 : x
2. Step 2: Convert to fraction form
   12,942,601.67/17,861,162.67 = 7,141,757.76/x
3. Step 3: Cross multiply
   12,942,601.67x = 17,861,162.67 × 7,141,757.76
4. Step 4: Simplify right side
   12,942,601.67x = 127,560,097,101,094.83
5. Step 5: Solve for x
   x = 127,560,097,101,094.83/12,942,601.67
6. Step 6: Final answer
   x = 9,855,831.18