Finding the Fourth Proportional to 108,884.56, 150,256.81 and 61,139.92

Step by Step Solution

1. Step 1: Write the proportion equation
   108,884.56 : 150,256.81 = 61,139.92 : x
2. Step 2: Convert to fraction form
   108,884.56/150,256.81 = 61,139.92/x
3. Step 3: Cross multiply
   108,884.56x = 150,256.81 × 61,139.92
4. Step 4: Simplify right side
   108,884.56x = 9,186,689,342.86
5. Step 5: Solve for x
   x = 9,186,689,342.86/108,884.56
6. Step 6: Final answer
   x = 84,370.91