Finding the Fourth Proportional to 101,471.69, 139,916.31 and 75,896.09

Step by Step Solution

1. Step 1: Write the proportion equation
   101,471.69 : 139,916.31 = 75,896.09 : x
2. Step 2: Convert to fraction form
   101,471.69/139,916.31 = 75,896.09/x
3. Step 3: Cross multiply
   101,471.69x = 139,916.31 × 75,896.09
4. Step 4: Simplify right side
   101,471.69x = 10,619,100,823.64
5. Step 5: Solve for x
   x = 10,619,100,823.64/101,471.69
6. Step 6: Final answer
   x = 104,650.88