Finding the Fourth Proportional to 101,822.05, 140,514.51 and 56,499.85

Step by Step Solution

1. Step 1: Write the proportion equation
   101,822.05 : 140,514.51 = 56,499.85 : x
2. Step 2: Convert to fraction form
   101,822.05/140,514.51 = 56,499.85/x
3. Step 3: Cross multiply
   101,822.05x = 140,514.51 × 56,499.85
4. Step 4: Simplify right side
   101,822.05x = 7,939,048,737.82
5. Step 5: Solve for x
   x = 7,939,048,737.82/101,822.05
6. Step 6: Final answer
   x = 77,969.84