Finding the Fourth Proportional to 120,168.02, 165,655.89 and 84,249.62

Step by Step Solution

1. Step 1: Write the proportion equation
   120,168.02 : 165,655.89 = 84,249.62 : x
2. Step 2: Convert to fraction form
   120,168.02/165,655.89 = 84,249.62/x
3. Step 3: Cross multiply
   120,168.02x = 165,655.89 × 84,249.62
4. Step 4: Simplify right side
   120,168.02x = 13,956,445,783.26
5. Step 5: Solve for x
   x = 13,956,445,783.26/120,168.02
6. Step 6: Final answer
   x = 116,141.10