Finding the Fourth Proportional to 120,651, 166,498.52 and 70,359.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,651 : 166,498.52 = 70,359.72 : x
2. Step 2: Convert to fraction form
   120,651/166,498.52 = 70,359.72/x
3. Step 3: Cross multiply
   120,651x = 166,498.52 × 70,359.72
4. Step 4: Simplify right side
   120,651x = 11,714,788,895.82
5. Step 5: Solve for x
   x = 11,714,788,895.82/120,651
6. Step 6: Final answer
   x = 97,096.49