Finding the Fourth Proportional to 81,931.06, 113,063.61 and 46,120.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,931.06 : 113,063.61 = 46,120.96 : x
2. Step 2: Convert to fraction form
   81,931.06/113,063.61 = 46,120.96/x
3. Step 3: Cross multiply
   81,931.06x = 113,063.61 × 46,120.96
4. Step 4: Simplify right side
   81,931.06x = 5,214,602,234.27
5. Step 5: Solve for x
   x = 5,214,602,234.27/81,931.06
6. Step 6: Final answer
   x = 63,646.22