Finding the Fourth Proportional to 83,379.61, 115,081.73 and 53,157.97

Step by Step Solution

1. Step 1: Write the proportion equation
   83,379.61 : 115,081.73 = 53,157.97 : x
2. Step 2: Convert to fraction form
   83,379.61/115,081.73 = 53,157.97/x
3. Step 3: Cross multiply
   83,379.61x = 115,081.73 × 53,157.97
4. Step 4: Simplify right side
   83,379.61x = 6,117,511,150.89
5. Step 5: Solve for x
   x = 6,117,511,150.89/83,379.61
6. Step 6: Final answer
   x = 73,369.39