Finding the Fourth Proportional to 60,848.39, 84,028.28 and 57,535.08

Step by Step Solution

1. Step 1: Write the proportion equation
   60,848.39 : 84,028.28 = 57,535.08 : x
2. Step 2: Convert to fraction form
   60,848.39/84,028.28 = 57,535.08/x
3. Step 3: Cross multiply
   60,848.39x = 84,028.28 × 57,535.08
4. Step 4: Simplify right side
   60,848.39x = 4,834,573,524.39
5. Step 5: Solve for x
   x = 4,834,573,524.39/60,848.39
6. Step 6: Final answer
   x = 79,452.78