Finding the Fourth Proportional to 56,536.56, 78,021.86 and 31,045.44

Step by Step Solution

1. Step 1: Write the proportion equation
   56,536.56 : 78,021.86 = 31,045.44 : x
2. Step 2: Convert to fraction form
   56,536.56/78,021.86 = 31,045.44/x
3. Step 3: Cross multiply
   56,536.56x = 78,021.86 × 31,045.44
4. Step 4: Simplify right side
   56,536.56x = 2,422,222,973.32
5. Step 5: Solve for x
   x = 2,422,222,973.32/56,536.56
6. Step 6: Final answer
   x = 42,843.48