Finding the Fourth Proportional to 64,485.52, 88,981.32 and 36,189.52

Step by Step Solution

1. Step 1: Write the proportion equation
   64,485.52 : 88,981.32 = 36,189.52 : x
2. Step 2: Convert to fraction form
   64,485.52/88,981.32 = 36,189.52/x
3. Step 3: Cross multiply
   64,485.52x = 88,981.32 × 36,189.52
4. Step 4: Simplify right side
   64,485.52x = 3,220,191,259.77
5. Step 5: Solve for x
   x = 3,220,191,259.77/64,485.52
6. Step 6: Final answer
   x = 49,936.66