Finding the Fourth Proportional to 56,556.56, 78,048.06 and 31,406.06

Step by Step Solution

1. Step 1: Write the proportion equation
   56,556.56 : 78,048.06 = 31,406.06 : x
2. Step 2: Convert to fraction form
   56,556.56/78,048.06 = 31,406.06/x
3. Step 3: Cross multiply
   56,556.56x = 78,048.06 × 31,406.06
4. Step 4: Simplify right side
   56,556.56x = 2,451,182,132.59
5. Step 5: Solve for x
   x = 2,451,182,132.59/56,556.56
6. Step 6: Final answer
   x = 43,340.37