Finding the Fourth Proportional to 151,428.15, 208,968.03 and 83,451.42

Step by Step Solution

1. Step 1: Write the proportion equation
   151,428.15 : 208,968.03 = 83,451.42 : x
2. Step 2: Convert to fraction form
   151,428.15/208,968.03 = 83,451.42/x
3. Step 3: Cross multiply
   151,428.15x = 208,968.03 × 83,451.42
4. Step 4: Simplify right side
   151,428.15x = 17,438,678,838.10
5. Step 5: Solve for x
   x = 17,438,678,838.10/151,428.15
6. Step 6: Final answer
   x = 115,161.41