Finding the Fourth Proportional to 83,651.52, 115,431.42 and 49,654.20

Step by Step Solution

1. Step 1: Write the proportion equation
   83,651.52 : 115,431.42 = 49,654.20 : x
2. Step 2: Convert to fraction form
   83,651.52/115,431.42 = 49,654.20/x
3. Step 3: Cross multiply
   83,651.52x = 115,431.42 × 49,654.20
4. Step 4: Simplify right side
   83,651.52x = 5,731,654,814.96
5. Step 5: Solve for x
   x = 5,731,654,814.96/83,651.52
6. Step 6: Final answer
   x = 68,518.24