Finding the Fourth Proportional to 151,156.52, 208,586.90 and 83,171

Step by Step Solution

1. Step 1: Write the proportion equation
   151,156.52 : 208,586.90 = 83,171 : x
2. Step 2: Convert to fraction form
   151,156.52/208,586.90 = 83,171/x
3. Step 3: Cross multiply
   151,156.52x = 208,586.90 × 83,171
4. Step 4: Simplify right side
   151,156.52x = 17,348,381,059.90
5. Step 5: Solve for x
   x = 17,348,381,059.90/151,156.52
6. Step 6: Final answer
   x = 114,770.97