Finding the Fourth Proportional to 71,271, 98,354.22 and 42,977.88

Step by Step Solution

1. Step 1: Write the proportion equation
   71,271 : 98,354.22 = 42,977.88 : x
2. Step 2: Convert to fraction form
   71,271/98,354.22 = 42,977.88/x
3. Step 3: Cross multiply
   71,271x = 98,354.22 × 42,977.88
4. Step 4: Simplify right side
   71,271x = 4,227,055,864.65
5. Step 5: Solve for x
   x = 4,227,055,864.65/71,271
6. Step 6: Final answer
   x = 59,309.62