Finding the Fourth Proportional to 61,310.25, 91,915.29 and 31,736.61

Step by Step Solution

1. Step 1: Write the proportion equation
   61,310.25 : 91,915.29 = 31,736.61 : x
2. Step 2: Convert to fraction form
   61,310.25/91,915.29 = 31,736.61/x
3. Step 3: Cross multiply
   61,310.25x = 91,915.29 × 31,736.61
4. Step 4: Simplify right side
   61,310.25x = 2,917,079,711.77
5. Step 5: Solve for x
   x = 2,917,079,711.77/61,310.25
6. Step 6: Final answer
   x = 47,578.99