Finding the Fourth Proportional to 57,061, 78,744.45 and 31,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,061 : 78,744.45 = 31,910.50 : x
2. Step 2: Convert to fraction form
   57,061/78,744.45 = 31,910.50/x
3. Step 3: Cross multiply
   57,061x = 78,744.45 × 31,910.50
4. Step 4: Simplify right side
   57,061x = 2,512,774,771.73
5. Step 5: Solve for x
   x = 2,512,774,771.73/57,061
6. Step 6: Final answer
   x = 44,036.64