Finding the Fourth Proportional to 7,020,501.72, 10,531,146.42 and 1,971,418.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,020,501.72 : 10,531,146.42 = 1,971,418.56 : x
2. Step 2: Convert to fraction form
   7,020,501.72/10,531,146.42 = 1,971,418.56/x
3. Step 3: Cross multiply
   7,020,501.72x = 10,531,146.42 × 1,971,418.56
4. Step 4: Simplify right side
   7,020,501.72x = 20,761,297,510,465.55
5. Step 5: Solve for x
   x = 20,761,297,510,465.55/7,020,501.72
6. Step 6: Final answer
   x = 2,957,238.43