Finding the Fourth Proportional to 60,822.02, 83,992.14 and 57,508.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,822.02 : 83,992.14 = 57,508.72 : x
2. Step 2: Convert to fraction form
   60,822.02/83,992.14 = 57,508.72/x
3. Step 3: Cross multiply
   60,822.02x = 83,992.14 × 57,508.72
4. Step 4: Simplify right side
   60,822.02x = 4,830,280,251.48
5. Step 5: Solve for x
   x = 4,830,280,251.48/60,822.02
6. Step 6: Final answer
   x = 79,416.63