Finding the Fourth Proportional to 2,918,013.72, 4,377,016.50 and 1,621,989.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,918,013.72 : 4,377,016.50 = 1,621,989.96 : x
2. Step 2: Convert to fraction form
   2,918,013.72/4,377,016.50 = 1,621,989.96/x
3. Step 3: Cross multiply
   2,918,013.72x = 4,377,016.50 × 1,621,989.96
4. Step 4: Simplify right side
   2,918,013.72x = 7,099,476,817,754.34
5. Step 5: Solve for x
   x = 7,099,476,817,754.34/2,918,013.72
6. Step 6: Final answer
   x = 2,432,982.67