Finding the Fourth Proportional to 56,932.09, 78,566.30 and 31,781.59

Step by Step Solution

1. Step 1: Write the proportion equation
   56,932.09 : 78,566.30 = 31,781.59 : x
2. Step 2: Convert to fraction form
   56,932.09/78,566.30 = 31,781.59/x
3. Step 3: Cross multiply
   56,932.09x = 78,566.30 × 31,781.59
4. Step 4: Simplify right side
   56,932.09x = 2,496,961,775.51
5. Step 5: Solve for x
   x = 2,496,961,775.51/56,932.09
6. Step 6: Final answer
   x = 43,858.60