Finding the Fourth Proportional to 56,814.24, 78,404.04 and 31,665.36

Step by Step Solution

1. Step 1: Write the proportion equation
   56,814.24 : 78,404.04 = 31,665.36 : x
2. Step 2: Convert to fraction form
   56,814.24/78,404.04 = 31,665.36/x
3. Step 3: Cross multiply
   56,814.24x = 78,404.04 × 31,665.36
4. Step 4: Simplify right side
   56,814.24x = 2,482,692,152.05
5. Step 5: Solve for x
   x = 2,482,692,152.05/56,814.24
6. Step 6: Final answer
   x = 43,698.41