Finding the Fourth Proportional to 89,215.31, 123,118.70 and 48,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,215.31 : 123,118.70 = 48,928.72 : x
2. Step 2: Convert to fraction form
   89,215.31/123,118.70 = 48,928.72/x
3. Step 3: Cross multiply
   89,215.31x = 123,118.70 × 48,928.72
4. Step 4: Simplify right side
   89,215.31x = 6,024,039,846.62
5. Step 5: Solve for x
   x = 6,024,039,846.62/89,215.31
6. Step 6: Final answer
   x = 67,522.49