Finding the Fourth Proportional to 152,072.39, 209,857.71 and 84,087.87

Step by Step Solution

1. Step 1: Write the proportion equation
   152,072.39 : 209,857.71 = 84,087.87 : x
2. Step 2: Convert to fraction form
   152,072.39/209,857.71 = 84,087.87/x
3. Step 3: Cross multiply
   152,072.39x = 209,857.71 × 84,087.87
4. Step 4: Simplify right side
   152,072.39x = 17,646,488,072.80
5. Step 5: Solve for x
   x = 17,646,488,072.80/152,072.39
6. Step 6: Final answer
   x = 116,040.05