Finding the Fourth Proportional to 88,320, 121,881.60 and 48,576

Step by Step Solution

1. Step 1: Write the proportion equation
   88,320 : 121,881.60 = 48,576 : x
2. Step 2: Convert to fraction form
   88,320/121,881.60 = 48,576/x
3. Step 3: Cross multiply
   88,320x = 121,881.60 × 48,576
4. Step 4: Simplify right side
   88,320x = 5,920,520,601.60
5. Step 5: Solve for x
   x = 5,920,520,601.60/88,320
6. Step 6: Final answer
   x = 67,034.88