Finding the Fourth Proportional to 72,461.12, 99,891.34 and 50,885.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,461.12 : 99,891.34 = 50,885.14 : x
2. Step 2: Convert to fraction form
   72,461.12/99,891.34 = 50,885.14/x
3. Step 3: Cross multiply
   72,461.12x = 99,891.34 × 50,885.14
4. Step 4: Simplify right side
   72,461.12x = 5,082,984,820.69
5. Step 5: Solve for x
   x = 5,082,984,820.69/72,461.12
6. Step 6: Final answer
   x = 70,147.75