Finding the Fourth Proportional to 120,061.34, 165,676.29 and 66,345.38

Step by Step Solution

1. Step 1: Write the proportion equation
   120,061.34 : 165,676.29 = 66,345.38 : x
2. Step 2: Convert to fraction form
   120,061.34/165,676.29 = 66,345.38/x
3. Step 3: Cross multiply
   120,061.34x = 165,676.29 × 66,345.38
4. Step 4: Simplify right side
   120,061.34x = 10,991,856,417.04
5. Step 5: Solve for x
   x = 10,991,856,417.04/120,061.34
6. Step 6: Final answer
   x = 91,552.01