Finding the Fourth Proportional to 109,689.24, 164,424.86 and 76,339.24

Step by Step Solution

1. Step 1: Write the proportion equation
   109,689.24 : 164,424.86 = 76,339.24 : x
2. Step 2: Convert to fraction form
   109,689.24/164,424.86 = 76,339.24/x
3. Step 3: Cross multiply
   109,689.24x = 164,424.86 × 76,339.24
4. Step 4: Simplify right side
   109,689.24x = 12,552,068,056.75
5. Step 5: Solve for x
   x = 12,552,068,056.75/109,689.24
6. Step 6: Final answer
   x = 114,432.99