Finding the Fourth Proportional to 89,816.74, 123,941.43 and 51,549.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89,816.74 : 123,941.43 = 51,549.34 : x
2. Step 2: Convert to fraction form
   89,816.74/123,941.43 = 51,549.34/x
3. Step 3: Cross multiply
   89,816.74x = 123,941.43 × 51,549.34
4. Step 4: Simplify right side
   89,816.74x = 6,389,098,915.16
5. Step 5: Solve for x
   x = 6,389,098,915.16/89,816.74
6. Step 6: Final answer
   x = 71,134.83