Finding the Fourth Proportional to 83,086.50, 124,658.88 and 51,885.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,086.50 : 124,658.88 = 51,885.30 : x
2. Step 2: Convert to fraction form
   83,086.50/124,658.88 = 51,885.30/x
3. Step 3: Cross multiply
   83,086.50x = 124,658.88 × 51,885.30
4. Step 4: Simplify right side
   83,086.50x = 6,467,963,386.46
5. Step 5: Solve for x
   x = 6,467,963,386.46/83,086.50
6. Step 6: Final answer
   x = 77,846.14