Finding the Fourth Proportional to 89,156.50, 123,039 and 48,870.26

Step by Step Solution

1. Step 1: Write the proportion equation
   89,156.50 : 123,039 = 48,870.26 : x
2. Step 2: Convert to fraction form
   89,156.50/123,039 = 48,870.26/x
3. Step 3: Cross multiply
   89,156.50x = 123,039 × 48,870.26
4. Step 4: Simplify right side
   89,156.50x = 6,012,947,920.14
5. Step 5: Solve for x
   x = 6,012,947,920.14/89,156.50
6. Step 6: Final answer
   x = 67,442.62