Finding the Fourth Proportional to 10,661,606.38, 15,992,397.15 and 3,473,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,661,606.38 : 15,992,397.15 = 3,473,128.72 : x
2. Step 2: Convert to fraction form
   10,661,606.38/15,992,397.15 = 3,473,128.72/x
3. Step 3: Cross multiply
   10,661,606.38x = 15,992,397.15 × 3,473,128.72
4. Step 4: Simplify right side
   10,661,606.38x = 55,543,653,843,311.16
5. Step 5: Solve for x
   x = 55,543,653,843,311.16/10,661,606.38
6. Step 6: Final answer
   x = 5,209,689.03