Finding the Fourth Proportional to 113,519.72, 156,684.30 and 65,799.38

Step by Step Solution

1. Step 1: Write the proportion equation
   113,519.72 : 156,684.30 = 65,799.38 : x
2. Step 2: Convert to fraction form
   113,519.72/156,684.30 = 65,799.38/x
3. Step 3: Cross multiply
   113,519.72x = 156,684.30 × 65,799.38
4. Step 4: Simplify right side
   113,519.72x = 10,309,729,795.73
5. Step 5: Solve for x
   x = 10,309,729,795.73/113,519.72
6. Step 6: Final answer
   x = 90,818.84