Finding the Fourth Proportional to 151,771.79, 209,445.82 and 83,787.55

Step by Step Solution

1. Step 1: Write the proportion equation
   151,771.79 : 209,445.82 = 83,787.55 : x
2. Step 2: Convert to fraction form
   151,771.79/209,445.82 = 83,787.55/x
3. Step 3: Cross multiply
   151,771.79x = 209,445.82 × 83,787.55
4. Step 4: Simplify right side
   151,771.79x = 17,548,951,382.46
5. Step 5: Solve for x
   x = 17,548,951,382.46/151,771.79
6. Step 6: Final answer
   x = 115,627.23