Finding the Fourth Proportional to 276,111.54, 414,167.90 and 76,432.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,111.54 : 414,167.90 = 76,432.50 : x
2. Step 2: Convert to fraction form
   276,111.54/414,167.90 = 76,432.50/x
3. Step 3: Cross multiply
   276,111.54x = 414,167.90 × 76,432.50
4. Step 4: Simplify right side
   276,111.54x = 31,655,887,634.59
5. Step 5: Solve for x
   x = 31,655,887,634.59/276,111.54
6. Step 6: Final answer
   x = 114,648.91