Finding the Fourth Proportional to 56,241.98, 77,610.03 and 31,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,241.98 : 77,610.03 = 31,089.50 : x
2. Step 2: Convert to fraction form
   56,241.98/77,610.03 = 31,089.50/x
3. Step 3: Cross multiply
   56,241.98x = 77,610.03 × 31,089.50
4. Step 4: Simplify right side
   56,241.98x = 2,412,857,027.69
5. Step 5: Solve for x
   x = 2,412,857,027.69/56,241.98
6. Step 6: Final answer
   x = 42,901.35