Finding the Fourth Proportional to 3,870,467.62, 5,341,382.42 and 2,128,269.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870,467.62 : 5,341,382.42 = 2,128,269.72 : x
2. Step 2: Convert to fraction form
   3,870,467.62/5,341,382.42 = 2,128,269.72/x
3. Step 3: Cross multiply
   3,870,467.62x = 5,341,382.42 × 2,128,269.72
4. Step 4: Simplify right side
   3,870,467.62x = 11,367,902,467,426.32
5. Step 5: Solve for x
   x = 11,367,902,467,426.32/3,870,467.62
6. Step 6: Final answer
   x = 2,937,087.60