Finding the Fourth Proportional to 56,503.50, 77,974.77 and 31,010.01

Step by Step Solution

1. Step 1: Write the proportion equation
   56,503.50 : 77,974.77 = 31,010.01 : x
2. Step 2: Convert to fraction form
   56,503.50/77,974.77 = 31,010.01/x
3. Step 3: Cross multiply
   56,503.50x = 77,974.77 × 31,010.01
4. Step 4: Simplify right side
   56,503.50x = 2,417,998,397.45
5. Step 5: Solve for x
   x = 2,417,998,397.45/56,503.50
6. Step 6: Final answer
   x = 42,793.78