Finding the Fourth Proportional to 185,550.21, 256,060.17 and 100,667.25

Step by Step Solution

1. Step 1: Write the proportion equation
   185,550.21 : 256,060.17 = 100,667.25 : x
2. Step 2: Convert to fraction form
   185,550.21/256,060.17 = 100,667.25/x
3. Step 3: Cross multiply
   185,550.21x = 256,060.17 × 100,667.25
4. Step 4: Simplify right side
   185,550.21x = 25,776,873,148.43
5. Step 5: Solve for x
   x = 25,776,873,148.43/185,550.21
6. Step 6: Final answer
   x = 138,921.28