Finding the Fourth Proportional to 89,621.18, 123,680.01 and 48,788.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,621.18 : 123,680.01 = 48,788.03 : x
2. Step 2: Convert to fraction form
   89,621.18/123,680.01 = 48,788.03/x
3. Step 3: Cross multiply
   89,621.18x = 123,680.01 × 48,788.03
4. Step 4: Simplify right side
   89,621.18x = 6,034,103,419.88
5. Step 5: Solve for x
   x = 6,034,103,419.88/89,621.18
6. Step 6: Final answer
   x = 67,328.99