Finding the Fourth Proportional to 215,065.59, 322,722.86 and 88,682.28

Step by Step Solution

1. Step 1: Write the proportion equation
   215,065.59 : 322,722.86 = 88,682.28 : x
2. Step 2: Convert to fraction form
   215,065.59/322,722.86 = 88,682.28/x
3. Step 3: Cross multiply
   215,065.59x = 322,722.86 × 88,682.28
4. Step 4: Simplify right side
   215,065.59x = 28,619,798,589.51
5. Step 5: Solve for x
   x = 28,619,798,589.51/215,065.59
6. Step 6: Final answer
   x = 133,074.75