Finding the Fourth Proportional to 109,409.42, 164,134.71 and 75,358.91

Step by Step Solution

1. Step 1: Write the proportion equation
   109,409.42 : 164,134.71 = 75,358.91 : x
2. Step 2: Convert to fraction form
   109,409.42/164,134.71 = 75,358.91/x
3. Step 3: Cross multiply
   109,409.42x = 164,134.71 × 75,358.91
4. Step 4: Simplify right side
   109,409.42x = 12,369,012,018.09
5. Step 5: Solve for x
   x = 12,369,012,018.09/109,409.42
6. Step 6: Final answer
   x = 113,052.54