Finding the Fourth Proportional to 185,817.76, 256,434.06 and 100,940.56

Step by Step Solution

1. Step 1: Write the proportion equation
   185,817.76 : 256,434.06 = 100,940.56 : x
2. Step 2: Convert to fraction form
   185,817.76/256,434.06 = 100,940.56/x
3. Step 3: Cross multiply
   185,817.76x = 256,434.06 × 100,940.56
4. Step 4: Simplify right side
   185,817.76x = 25,884,597,619.47
5. Step 5: Solve for x
   x = 25,884,597,619.47/185,817.76
6. Step 6: Final answer
   x = 139,300.99