Finding the Fourth Proportional to 81,900.40, 113,022.18 and 46,091

Step by Step Solution

1. Step 1: Write the proportion equation
   81,900.40 : 113,022.18 = 46,091 : x
2. Step 2: Convert to fraction form
   81,900.40/113,022.18 = 46,091/x
3. Step 3: Cross multiply
   81,900.40x = 113,022.18 × 46,091
4. Step 4: Simplify right side
   81,900.40x = 5,209,305,298.38
5. Step 5: Solve for x
   x = 5,209,305,298.38/81,900.40
6. Step 6: Final answer
   x = 63,605.37