Finding the Fourth Proportional to 101,656.83, 140,291.82 and 56,339.76

Step by Step Solution

1. Step 1: Write the proportion equation
   101,656.83 : 140,291.82 = 56,339.76 : x
2. Step 2: Convert to fraction form
   101,656.83/140,291.82 = 56,339.76/x
3. Step 3: Cross multiply
   101,656.83x = 140,291.82 × 56,339.76
4. Step 4: Simplify right side
   101,656.83x = 7,904,007,468.76
5. Step 5: Solve for x
   x = 7,904,007,468.76/101,656.83
6. Step 6: Final answer
   x = 77,751.86