Finding the Fourth Proportional to 152,139.17, 209,935.88 and 84,145.34

Step by Step Solution

1. Step 1: Write the proportion equation
   152,139.17 : 209,935.88 = 84,145.34 : x
2. Step 2: Convert to fraction form
   152,139.17/209,935.88 = 84,145.34/x
3. Step 3: Cross multiply
   152,139.17x = 209,935.88 × 84,145.34
4. Step 4: Simplify right side
   152,139.17x = 17,665,124,530.39
5. Step 5: Solve for x
   x = 17,665,124,530.39/152,139.17
6. Step 6: Final answer
   x = 116,111.62