Finding the Fourth Proportional to 71,510.42, 107,282.98 and 21,587.54

Step by Step Solution

1. Step 1: Write the proportion equation
   71,510.42 : 107,282.98 = 21,587.54 : x
2. Step 2: Convert to fraction form
   71,510.42/107,282.98 = 21,587.54/x
3. Step 3: Cross multiply
   71,510.42x = 107,282.98 × 21,587.54
4. Step 4: Simplify right side
   71,510.42x = 2,315,975,031.69
5. Step 5: Solve for x
   x = 2,315,975,031.69/71,510.42
6. Step 6: Final answer
   x = 32,386.54