Finding the Fourth Proportional to 89,256.32, 123,177.12 and 48,971.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,256.32 : 123,177.12 = 48,971.72 : x
2. Step 2: Convert to fraction form
   89,256.32/123,177.12 = 48,971.72/x
3. Step 3: Cross multiply
   89,256.32x = 123,177.12 × 48,971.72
4. Step 4: Simplify right side
   89,256.32x = 6,032,195,431.05
5. Step 5: Solve for x
   x = 6,032,195,431.05/89,256.32
6. Step 6: Final answer
   x = 67,582.84