Finding the Fourth Proportional to 100,919.52, 139,269.78 and 55,598.94

Step by Step Solution

1. Step 1: Write the proportion equation
   100,919.52 : 139,269.78 = 55,598.94 : x
2. Step 2: Convert to fraction form
   100,919.52/139,269.78 = 55,598.94/x
3. Step 3: Cross multiply
   100,919.52x = 139,269.78 × 55,598.94
4. Step 4: Simplify right side
   100,919.52x = 7,743,252,142.03
5. Step 5: Solve for x
   x = 7,743,252,142.03/100,919.52
6. Step 6: Final answer
   x = 76,727.00