Finding the Fourth Proportional to 56,706.06, 78,257.43 and 31,556.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,706.06 : 78,257.43 = 31,556.10 : x
2. Step 2: Convert to fraction form
   56,706.06/78,257.43 = 31,556.10/x
3. Step 3: Cross multiply
   56,706.06x = 78,257.43 × 31,556.10
4. Step 4: Simplify right side
   56,706.06x = 2,469,499,286.82
5. Step 5: Solve for x
   x = 2,469,499,286.82/56,706.06
6. Step 6: Final answer
   x = 43,549.12