Finding the Fourth Proportional to 56,498.80, 77,965.72 and 31,004.54

Step by Step Solution

1. Step 1: Write the proportion equation
   56,498.80 : 77,965.72 = 31,004.54 : x
2. Step 2: Convert to fraction form
   56,498.80/77,965.72 = 31,004.54/x
3. Step 3: Cross multiply
   56,498.80x = 77,965.72 × 31,004.54
4. Step 4: Simplify right side
   56,498.80x = 2,417,291,284.37
5. Step 5: Solve for x
   x = 2,417,291,284.37/56,498.80
6. Step 6: Final answer
   x = 42,784.83