Finding the Fourth Proportional to 152,141.28, 209,938.82 and 84,147.45

Step by Step Solution

1. Step 1: Write the proportion equation
   152,141.28 : 209,938.82 = 84,147.45 : x
2. Step 2: Convert to fraction form
   152,141.28/209,938.82 = 84,147.45/x
3. Step 3: Cross multiply
   152,141.28x = 209,938.82 × 84,147.45
4. Step 4: Simplify right side
   152,141.28x = 17,665,815,938.27
5. Step 5: Solve for x
   x = 17,665,815,938.27/152,141.28
6. Step 6: Final answer
   x = 116,114.55