Finding the Fourth Proportional to 71,800.90, 107,466.55 and 52,820.48

Step by Step Solution

1. Step 1: Write the proportion equation
   71,800.90 : 107,466.55 = 52,820.48 : x
2. Step 2: Convert to fraction form
   71,800.90/107,466.55 = 52,820.48/x
3. Step 3: Cross multiply
   71,800.90x = 107,466.55 × 52,820.48
4. Step 4: Simplify right side
   71,800.90x = 5,676,434,754.94
5. Step 5: Solve for x
   x = 5,676,434,754.94/71,800.90
6. Step 6: Final answer
   x = 79,057.99