Finding the Fourth Proportional to 101,748.72, 140,414.49 and 56,427.33

Step by Step Solution

1. Step 1: Write the proportion equation
   101,748.72 : 140,414.49 = 56,427.33 : x
2. Step 2: Convert to fraction form
   101,748.72/140,414.49 = 56,427.33/x
3. Step 3: Cross multiply
   101,748.72x = 140,414.49 × 56,427.33
4. Step 4: Simplify right side
   101,748.72x = 7,923,214,764.01
5. Step 5: Solve for x
   x = 7,923,214,764.01/101,748.72
6. Step 6: Final answer
   x = 77,870.41