Finding the Fourth Proportional to 151,783.04, 209,456.43 and 83,798.78

Step by Step Solution

1. Step 1: Write the proportion equation
   151,783.04 : 209,456.43 = 83,798.78 : x
2. Step 2: Convert to fraction form
   151,783.04/209,456.43 = 83,798.78/x
3. Step 3: Cross multiply
   151,783.04x = 209,456.43 × 83,798.78
4. Step 4: Simplify right side
   151,783.04x = 17,552,191,830.88
5. Step 5: Solve for x
   x = 17,552,191,830.88/151,783.04
6. Step 6: Final answer
   x = 115,640.01