Finding the Fourth Proportional to 105,703.42, 145,786.01 and 92,929.46

Step by Step Solution

1. Step 1: Write the proportion equation
   105,703.42 : 145,786.01 = 92,929.46 : x
2. Step 2: Convert to fraction form
   105,703.42/145,786.01 = 92,929.46/x
3. Step 3: Cross multiply
   105,703.42x = 145,786.01 × 92,929.46
4. Step 4: Simplify right side
   105,703.42x = 13,547,815,184.85
5. Step 5: Solve for x
   x = 13,547,815,184.85/105,703.42
6. Step 6: Final answer
   x = 128,168.18