Finding the Fourth Proportional to 120,307.50, 166,061.30 and 69,354.27

Step by Step Solution

1. Step 1: Write the proportion equation
   120,307.50 : 166,061.30 = 69,354.27 : x
2. Step 2: Convert to fraction form
   120,307.50/166,061.30 = 69,354.27/x
3. Step 3: Cross multiply
   120,307.50x = 166,061.30 × 69,354.27
4. Step 4: Simplify right side
   120,307.50x = 11,517,059,889.98
5. Step 5: Solve for x
   x = 11,517,059,889.98/120,307.50
6. Step 6: Final answer
   x = 95,730.19