Finding the Fourth Proportional to 57,770.10, 81,053.10 and 57,770.10

Step by Step Solution

1. Step 1: Write the proportion equation
   57,770.10 : 81,053.10 = 57,770.10 : x
2. Step 2: Convert to fraction form
   57,770.10/81,053.10 = 57,770.10/x
3. Step 3: Cross multiply
   57,770.10x = 81,053.10 × 57,770.10
4. Step 4: Simplify right side
   57,770.10x = 4,682,445,692.31
5. Step 5: Solve for x
   x = 4,682,445,692.31/57,770.10
6. Step 6: Final answer
   x = 81,053.10