Finding the Fourth Proportional to 151,834.86, 209,533.78 and 83,851.72

Step by Step Solution

1. Step 1: Write the proportion equation
   151,834.86 : 209,533.78 = 83,851.72 : x
2. Step 2: Convert to fraction form
   151,834.86/209,533.78 = 83,851.72/x
3. Step 3: Cross multiply
   151,834.86x = 209,533.78 × 83,851.72
4. Step 4: Simplify right side
   151,834.86x = 17,569,767,851.10
5. Step 5: Solve for x
   x = 17,569,767,851.10/151,834.86
6. Step 6: Final answer
   x = 115,716.30