Finding the Fourth Proportional to 215,019.15, 322,529.76 and 65,260.74

Step by Step Solution

1. Step 1: Write the proportion equation
   215,019.15 : 322,529.76 = 65,260.74 : x
2. Step 2: Convert to fraction form
   215,019.15/322,529.76 = 65,260.74/x
3. Step 3: Cross multiply
   215,019.15x = 322,529.76 × 65,260.74
4. Step 4: Simplify right side
   215,019.15x = 21,048,530,483.32
5. Step 5: Solve for x
   x = 21,048,530,483.32/215,019.15
6. Step 6: Final answer
   x = 97,891.42