Finding the Fourth Proportional to 88,036.84, 121,388.52 and 64,174.24

Step by Step Solution

1. Step 1: Write the proportion equation
   88,036.84 : 121,388.52 = 64,174.24 : x
2. Step 2: Convert to fraction form
   88,036.84/121,388.52 = 64,174.24/x
3. Step 3: Cross multiply
   88,036.84x = 121,388.52 × 64,174.24
4. Step 4: Simplify right side
   88,036.84x = 7,790,016,015.72
5. Step 5: Solve for x
   x = 7,790,016,015.72/88,036.84
6. Step 6: Final answer
   x = 88,485.87