Finding the Fourth Proportional to 109,173.18, 150,658.38 and 61,426.92

Step by Step Solution

1. Step 1: Write the proportion equation
   109,173.18 : 150,658.38 = 61,426.92 : x
2. Step 2: Convert to fraction form
   109,173.18/150,658.38 = 61,426.92/x
3. Step 3: Cross multiply
   109,173.18x = 150,658.38 × 61,426.92
4. Step 4: Simplify right side
   109,173.18x = 9,254,480,255.59
5. Step 5: Solve for x
   x = 9,254,480,255.59/109,173.18
6. Step 6: Final answer
   x = 84,768.81