Finding the Fourth Proportional to 81,930.72, 113,066.50 and 46,122

Step by Step Solution

1. Step 1: Write the proportion equation
   81,930.72 : 113,066.50 = 46,122 : x
2. Step 2: Convert to fraction form
   81,930.72/113,066.50 = 46,122/x
3. Step 3: Cross multiply
   81,930.72x = 113,066.50 × 46,122
4. Step 4: Simplify right side
   81,930.72x = 5,214,853,113
5. Step 5: Solve for x
   x = 5,214,853,113/81,930.72
6. Step 6: Final answer
   x = 63,649.55