Finding the Fourth Proportional to 56,496.50, 77,964.96 and 31,003.30

Step by Step Solution

1. Step 1: Write the proportion equation
   56,496.50 : 77,964.96 = 31,003.30 : x
2. Step 2: Convert to fraction form
   56,496.50/77,964.96 = 31,003.30/x
3. Step 3: Cross multiply
   56,496.50x = 77,964.96 × 31,003.30
4. Step 4: Simplify right side
   56,496.50x = 2,417,171,044.37
5. Step 5: Solve for x
   x = 2,417,171,044.37/56,496.50
6. Step 6: Final answer
   x = 42,784.44