Finding the Fourth Proportional to 185,559.30, 256,071.78 and 100,676.34

Step by Step Solution

1. Step 1: Write the proportion equation
   185,559.30 : 256,071.78 = 100,676.34 : x
2. Step 2: Convert to fraction form
   185,559.30/256,071.78 = 100,676.34/x
3. Step 3: Cross multiply
   185,559.30x = 256,071.78 × 100,676.34
4. Step 4: Simplify right side
   185,559.30x = 25,780,369,587.69
5. Step 5: Solve for x
   x = 25,780,369,587.69/185,559.30
6. Step 6: Final answer
   x = 138,933.32