Finding the Fourth Proportional to 71,823, 99,127.26 and 42,009.24

Step by Step Solution

1. Step 1: Write the proportion equation
   71,823 : 99,127.26 = 42,009.24 : x
2. Step 2: Convert to fraction form
   71,823/99,127.26 = 42,009.24/x
3. Step 3: Cross multiply
   71,823x = 99,127.26 × 42,009.24
4. Step 4: Simplify right side
   71,823x = 4,164,260,855.88
5. Step 5: Solve for x
   x = 4,164,260,855.88/71,823
6. Step 6: Final answer
   x = 57,979.49