Finding the Fourth Proportional to 56,665.12, 78,195.76 and 31,514.08

Step by Step Solution

1. Step 1: Write the proportion equation
   56,665.12 : 78,195.76 = 31,514.08 : x
2. Step 2: Convert to fraction form
   56,665.12/78,195.76 = 31,514.08/x
3. Step 3: Cross multiply
   56,665.12x = 78,195.76 × 31,514.08
4. Step 4: Simplify right side
   56,665.12x = 2,464,267,436.30
5. Step 5: Solve for x
   x = 2,464,267,436.30/56,665.12
6. Step 6: Final answer
   x = 43,488.26