Finding the Fourth Proportional to 185,787.50, 256,388.05 and 100,904.56

Step by Step Solution

1. Step 1: Write the proportion equation
   185,787.50 : 256,388.05 = 100,904.56 : x
2. Step 2: Convert to fraction form
   185,787.50/256,388.05 = 100,904.56/x
3. Step 3: Cross multiply
   185,787.50x = 256,388.05 × 100,904.56
4. Step 4: Simplify right side
   185,787.50x = 25,870,723,580.76
5. Step 5: Solve for x
   x = 25,870,723,580.76/185,787.50
6. Step 6: Final answer
   x = 139,249.00