Finding the Fourth Proportional to 120,949.34, 166,885.72 and 70,638.62

Step by Step Solution

1. Step 1: Write the proportion equation
   120,949.34 : 166,885.72 = 70,638.62 : x
2. Step 2: Convert to fraction form
   120,949.34/166,885.72 = 70,638.62/x
3. Step 3: Cross multiply
   120,949.34x = 166,885.72 × 70,638.62
4. Step 4: Simplify right side
   120,949.34x = 11,788,575,947.48
5. Step 5: Solve for x
   x = 11,788,575,947.48/120,949.34
6. Step 6: Final answer
   x = 97,467.06