Finding the Fourth Proportional to 71,381.25, 106,973.46 and 51,501.42

Step by Step Solution

1. Step 1: Write the proportion equation
   71,381.25 : 106,973.46 = 51,501.42 : x
2. Step 2: Convert to fraction form
   71,381.25/106,973.46 = 51,501.42/x
3. Step 3: Cross multiply
   71,381.25x = 106,973.46 × 51,501.42
4. Step 4: Simplify right side
   71,381.25x = 5,509,285,092.31
5. Step 5: Solve for x
   x = 5,509,285,092.31/71,381.25
6. Step 6: Final answer
   x = 77,181.12