Finding the Fourth Proportional to 56,159.25, 77,499.78 and 31,010.37

Step by Step Solution

1. Step 1: Write the proportion equation
   56,159.25 : 77,499.78 = 31,010.37 : x
2. Step 2: Convert to fraction form
   56,159.25/77,499.78 = 31,010.37/x
3. Step 3: Cross multiply
   56,159.25x = 77,499.78 × 31,010.37
4. Step 4: Simplify right side
   56,159.25x = 2,403,296,852.72
5. Step 5: Solve for x
   x = 2,403,296,852.72/56,159.25
6. Step 6: Final answer
   x = 42,794.32