Finding the Fourth Proportional to 80,530.98, 111,096.31 and 51,840.35

Step by Step Solution

1. Step 1: Write the proportion equation
   80,530.98 : 111,096.31 = 51,840.35 : x
2. Step 2: Convert to fraction form
   80,530.98/111,096.31 = 51,840.35/x
3. Step 3: Cross multiply
   80,530.98x = 111,096.31 × 51,840.35
4. Step 4: Simplify right side
   80,530.98x = 5,759,272,047.75
5. Step 5: Solve for x
   x = 5,759,272,047.75/80,530.98
6. Step 6: Final answer
   x = 71,516.23