Finding the Fourth Proportional to 152,854.72, 210,929.23 and 84,868.18

Step by Step Solution

1. Step 1: Write the proportion equation
   152,854.72 : 210,929.23 = 84,868.18 : x
2. Step 2: Convert to fraction form
   152,854.72/210,929.23 = 84,868.18/x
3. Step 3: Cross multiply
   152,854.72x = 210,929.23 × 84,868.18
4. Step 4: Simplify right side
   152,854.72x = 17,901,179,437.66
5. Step 5: Solve for x
   x = 17,901,179,437.66/152,854.72
6. Step 6: Final answer
   x = 117,112.38