Finding the Fourth Proportional to 120,213, 165,900.24 and 69,233.40

Step by Step Solution

1. Step 1: Write the proportion equation
   120,213 : 165,900.24 = 69,233.40 : x
2. Step 2: Convert to fraction form
   120,213/165,900.24 = 69,233.40/x
3. Step 3: Cross multiply
   120,213x = 165,900.24 × 69,233.40
4. Step 4: Simplify right side
   120,213x = 11,485,837,676.02
5. Step 5: Solve for x
   x = 11,485,837,676.02/120,213
6. Step 6: Final answer
   x = 95,545.72