Finding the Fourth Proportional to 57,055.40, 78,738.60 and 31,904.84

Step by Step Solution

1. Step 1: Write the proportion equation
   57,055.40 : 78,738.60 = 31,904.84 : x
2. Step 2: Convert to fraction form
   57,055.40/78,738.60 = 31,904.84/x
3. Step 3: Cross multiply
   57,055.40x = 78,738.60 × 31,904.84
4. Step 4: Simplify right side
   57,055.40x = 2,512,142,434.82
5. Step 5: Solve for x
   x = 2,512,142,434.82/57,055.40
6. Step 6: Final answer
   x = 44,029.88