Finding the Fourth Proportional to 151,963.08, 209,698.43 and 83,978.84

Step by Step Solution

1. Step 1: Write the proportion equation
   151,963.08 : 209,698.43 = 83,978.84 : x
2. Step 2: Convert to fraction form
   151,963.08/209,698.43 = 83,978.84/x
3. Step 3: Cross multiply
   151,963.08x = 209,698.43 × 83,978.84
4. Step 4: Simplify right side
   151,963.08x = 17,610,229,432.83
5. Step 5: Solve for x
   x = 17,610,229,432.83/151,963.08
6. Step 6: Final answer
   x = 115,884.92