Finding the Fourth Proportional to 11,656,146.72, 17,480,436.36 and 3,872,970.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,656,146.72 : 17,480,436.36 = 3,872,970.72 : x
2. Step 2: Convert to fraction form
   11,656,146.72/17,480,436.36 = 3,872,970.72/x
3. Step 3: Cross multiply
   11,656,146.72x = 17,480,436.36 × 3,872,970.72
4. Step 4: Simplify right side
   11,656,146.72x = 67,701,218,195,103.38
5. Step 5: Solve for x
   x = 67,701,218,195,103.38/11,656,146.72
6. Step 6: Final answer
   x = 5,808,198.87