Finding the Fourth Proportional to 152,798.69, 210,839.69 and 84,816.18

Step by Step Solution

1. Step 1: Write the proportion equation
   152,798.69 : 210,839.69 = 84,816.18 : x
2. Step 2: Convert to fraction form
   152,798.69/210,839.69 = 84,816.18/x
3. Step 3: Cross multiply
   152,798.69x = 210,839.69 × 84,816.18
4. Step 4: Simplify right side
   152,798.69x = 17,882,616,674.10
5. Step 5: Solve for x
   x = 17,882,616,674.10/152,798.69
6. Step 6: Final answer
   x = 117,033.84