Finding the Fourth Proportional to 56,499.80, 77,967.10 and 31,005.54

Step by Step Solution

1. Step 1: Write the proportion equation
   56,499.80 : 77,967.10 = 31,005.54 : x
2. Step 2: Convert to fraction form
   56,499.80/77,967.10 = 31,005.54/x
3. Step 3: Cross multiply
   56,499.80x = 77,967.10 × 31,005.54
4. Step 4: Simplify right side
   56,499.80x = 2,417,412,037.73
5. Step 5: Solve for x
   x = 2,417,412,037.73/56,499.80
6. Step 6: Final answer
   x = 42,786.21