Finding the Fourth Proportional to 7,161,636.12, 10,742,567.85 and 3,986,940.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,161,636.12 : 10,742,567.85 = 3,986,940.48 : x
2. Step 2: Convert to fraction form
   7,161,636.12/10,742,567.85 = 3,986,940.48/x
3. Step 3: Cross multiply
   7,161,636.12x = 10,742,567.85 × 3,986,940.48
4. Step 4: Simplify right side
   7,161,636.12x = 42,829,978,620,311.56
5. Step 5: Solve for x
   x = 42,829,978,620,311.56/7,161,636.12
6. Step 6: Final answer
   x = 5,980,474.00