Finding the Fourth Proportional to 57,064.84, 78,751.83 and 31,570.80

Step by Step Solution

1. Step 1: Write the proportion equation
   57,064.84 : 78,751.83 = 31,570.80 : x
2. Step 2: Convert to fraction form
   57,064.84/78,751.83 = 31,570.80/x
3. Step 3: Cross multiply
   57,064.84x = 78,751.83 × 31,570.80
4. Step 4: Simplify right side
   57,064.84x = 2,486,258,274.56
5. Step 5: Solve for x
   x = 2,486,258,274.56/57,064.84
6. Step 6: Final answer
   x = 43,569.00