Finding the Fourth Proportional to 61,285.31, 91,955.69 and 31,284.05

Step by Step Solution

1. Step 1: Write the proportion equation
   61,285.31 : 91,955.69 = 31,284.05 : x
2. Step 2: Convert to fraction form
   61,285.31/91,955.69 = 31,284.05/x
3. Step 3: Cross multiply
   61,285.31x = 91,955.69 × 31,284.05
4. Step 4: Simplify right side
   61,285.31x = 2,876,746,403.74
5. Step 5: Solve for x
   x = 2,876,746,403.74/61,285.31
6. Step 6: Final answer
   x = 46,940.23