Finding the Fourth Proportional to 120,154.82, 165,885.59 and 74,894.10

Step by Step Solution

1. Step 1: Write the proportion equation
   120,154.82 : 165,885.59 = 74,894.10 : x
2. Step 2: Convert to fraction form
   120,154.82/165,885.59 = 74,894.10/x
3. Step 3: Cross multiply
   120,154.82x = 165,885.59 × 74,894.10
4. Step 4: Simplify right side
   120,154.82x = 12,423,852,856.25
5. Step 5: Solve for x
   x = 12,423,852,856.25/120,154.82
6. Step 6: Final answer
   x = 103,398.71