Finding the Fourth Proportional to 151,408.24, 208,940.61 and 83,431.52

Step by Step Solution

1. Step 1: Write the proportion equation
   151,408.24 : 208,940.61 = 83,431.52 : x
2. Step 2: Convert to fraction form
   151,408.24/208,940.61 = 83,431.52/x
3. Step 3: Cross multiply
   151,408.24x = 208,940.61 × 83,431.52
4. Step 4: Simplify right side
   151,408.24x = 17,432,232,733.72
5. Step 5: Solve for x
   x = 17,432,232,733.72/151,408.24
6. Step 6: Final answer
   x = 115,133.98