Finding the Fourth Proportional to 31,625.91, 47,368.89 and 20,498.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,625.91 : 47,368.89 = 20,498.94 : x
2. Step 2: Convert to fraction form
   31,625.91/47,368.89 = 20,498.94/x
3. Step 3: Cross multiply
   31,625.91x = 47,368.89 × 20,498.94
4. Step 4: Simplify right side
   31,625.91x = 971,012,033.98
5. Step 5: Solve for x
   x = 971,012,033.98/31,625.91
6. Step 6: Final answer
   x = 30,703.05