Finding the Fourth Proportional to 101,340.72, 139,847.44 and 56,015.52

Step by Step Solution

1. Step 1: Write the proportion equation
   101,340.72 : 139,847.44 = 56,015.52 : x
2. Step 2: Convert to fraction form
   101,340.72/139,847.44 = 56,015.52/x
3. Step 3: Cross multiply
   101,340.72x = 139,847.44 × 56,015.52
4. Step 4: Simplify right side
   101,340.72x = 7,833,627,072.27
5. Step 5: Solve for x
   x = 7,833,627,072.27/101,340.72
6. Step 6: Final answer
   x = 77,299.90