Finding the Fourth Proportional to 120,432.15, 166,196.27 and 65,984.36

Step by Step Solution

1. Step 1: Write the proportion equation
   120,432.15 : 166,196.27 = 65,984.36 : x
2. Step 2: Convert to fraction form
   120,432.15/166,196.27 = 65,984.36/x
3. Step 3: Cross multiply
   120,432.15x = 166,196.27 × 65,984.36
4. Step 4: Simplify right side
   120,432.15x = 10,966,353,844.32
5. Step 5: Solve for x
   x = 10,966,353,844.32/120,432.15
6. Step 6: Final answer
   x = 91,058.36