Finding the Fourth Proportional to 152,028.10, 209,797.37 and 84,049.30

Step by Step Solution

1. Step 1: Write the proportion equation
   152,028.10 : 209,797.37 = 84,049.30 : x
2. Step 2: Convert to fraction form
   152,028.10/209,797.37 = 84,049.30/x
3. Step 3: Cross multiply
   152,028.10x = 209,797.37 × 84,049.30
4. Step 4: Simplify right side
   152,028.10x = 17,633,322,090.34
5. Step 5: Solve for x
   x = 17,633,322,090.34/152,028.10
6. Step 6: Final answer
   x = 115,987.26