Finding the Fourth Proportional to 101,789.22, 140,469.48 and 56,468.10

Step by Step Solution

1. Step 1: Write the proportion equation
   101,789.22 : 140,469.48 = 56,468.10 : x
2. Step 2: Convert to fraction form
   101,789.22/140,469.48 = 56,468.10/x
3. Step 3: Cross multiply
   101,789.22x = 140,469.48 × 56,468.10
4. Step 4: Simplify right side
   101,789.22x = 7,932,044,643.59
5. Step 5: Solve for x
   x = 7,932,044,643.59/101,789.22
6. Step 6: Final answer
   x = 77,926.18