Finding the Fourth Proportional to 152,853.90, 210,951.72 and 84,884.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,853.90 : 210,951.72 = 84,884.10 : x
2. Step 2: Convert to fraction form
   152,853.90/210,951.72 = 84,884.10/x
3. Step 3: Cross multiply
   152,853.90x = 210,951.72 × 84,884.10
4. Step 4: Simplify right side
   152,853.90x = 17,906,446,895.65
5. Step 5: Solve for x
   x = 17,906,446,895.65/152,853.90
6. Step 6: Final answer
   x = 117,147.46