Finding the Fourth Proportional to 185,672.72, 256,156.58 and 105,081.76

Step by Step Solution

1. Step 1: Write the proportion equation
   185,672.72 : 256,156.58 = 105,081.76 : x
2. Step 2: Convert to fraction form
   185,672.72/256,156.58 = 105,081.76/x
3. Step 3: Cross multiply
   185,672.72x = 256,156.58 × 105,081.76
4. Step 4: Simplify right side
   185,672.72x = 26,917,384,261.98
5. Step 5: Solve for x
   x = 26,917,384,261.98/185,672.72
6. Step 6: Final answer
   x = 144,972.21