Finding the Fourth Proportional to 3,608,543.50, 4,979,788.30 and 2,158,238.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608,543.50 : 4,979,788.30 = 2,158,238.91 : x
2. Step 2: Convert to fraction form
   3,608,543.50/4,979,788.30 = 2,158,238.91/x
3. Step 3: Cross multiply
   3,608,543.50x = 4,979,788.30 × 2,158,238.91
4. Step 4: Simplify right side
   3,608,543.50x = 10,747,572,847,723.81
5. Step 5: Solve for x
   x = 10,747,572,847,723.81/3,608,543.50
6. Step 6: Final answer
   x = 2,978,368.65