Finding the Fourth Proportional to 151,240.86, 208,710.69 and 83,256.38

Step by Step Solution

1. Step 1: Write the proportion equation
   151,240.86 : 208,710.69 = 83,256.38 : x
2. Step 2: Convert to fraction form
   151,240.86/208,710.69 = 83,256.38/x
3. Step 3: Cross multiply
   151,240.86x = 208,710.69 × 83,256.38
4. Step 4: Simplify right side
   151,240.86x = 17,376,496,516.70
5. Step 5: Solve for x
   x = 17,376,496,516.70/151,240.86
6. Step 6: Final answer
   x = 114,892.87