Finding the Fourth Proportional to 156.18, 233.86 and 83.82

Step by Step Solution

1. Step 1: Write the proportion equation
   156.18 : 233.86 = 83.82 : x
2. Step 2: Convert to fraction form
   156.18/233.86 = 83.82/x
3. Step 3: Cross multiply
   156.18x = 233.86 × 83.82
4. Step 4: Simplify right side
   156.18x = 19,602.15
5. Step 5: Solve for x
   x = 19,602.15/156.18
6. Step 6: Final answer
   x = 125.51