Finding the Fourth Proportional to 56,703.60, 78,253.56 and 31,554.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,703.60 : 78,253.56 = 31,554.72 : x
2. Step 2: Convert to fraction form
   56,703.60/78,253.56 = 31,554.72/x
3. Step 3: Cross multiply
   56,703.60x = 78,253.56 × 31,554.72
4. Step 4: Simplify right side
   56,703.60x = 2,469,269,174.80
5. Step 5: Solve for x
   x = 2,469,269,174.80/56,703.60
6. Step 6: Final answer
   x = 43,546.96