Finding the Fourth Proportional to 152,141.53, 209,939.16 and 84,147.70

Step by Step Solution

1. Step 1: Write the proportion equation
   152,141.53 : 209,939.16 = 84,147.70 : x
2. Step 2: Convert to fraction form
   152,141.53/209,939.16 = 84,147.70/x
3. Step 3: Cross multiply
   152,141.53x = 209,939.16 × 84,147.70
4. Step 4: Simplify right side
   152,141.53x = 17,665,897,453.93
5. Step 5: Solve for x
   x = 17,665,897,453.93/152,141.53
6. Step 6: Final answer
   x = 116,114.89