Finding the Fourth Proportional to 12,662,946.65, 17,472,933.61 and 7,154,311.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662,946.65 : 17,472,933.61 = 7,154,311.57 : x
2. Step 2: Convert to fraction form
   12,662,946.65/17,472,933.61 = 7,154,311.57/x
3. Step 3: Cross multiply
   12,662,946.65x = 17,472,933.61 × 7,154,311.57
4. Step 4: Simplify right side
   12,662,946.65x = 125,006,811,087,864.88
5. Step 5: Solve for x
   x = 125,006,811,087,864.88/12,662,946.65
6. Step 6: Final answer
   x = 9,871,857.99