Finding the Fourth Proportional to 276,111.50, 380,878.17 and 165,701.91

Step by Step Solution

1. Step 1: Write the proportion equation
   276,111.50 : 380,878.17 = 165,701.91 : x
2. Step 2: Convert to fraction form
   276,111.50/380,878.17 = 165,701.91/x
3. Step 3: Cross multiply
   276,111.50x = 380,878.17 × 165,701.91
4. Step 4: Simplify right side
   276,111.50x = 63,112,240,246.30
5. Step 5: Solve for x
   x = 63,112,240,246.30/276,111.50
6. Step 6: Final answer
   x = 228,575.20