Finding the Fourth Proportional to 89,689,589.77, 123,771,629.15 and 48,436,478.17

Step by Step Solution

1. Step 1: Write the proportion equation
   89,689,589.77 : 123,771,629.15 = 48,436,478.17 : x
2. Step 2: Convert to fraction form
   89,689,589.77/123,771,629.15 = 48,436,478.17/x
3. Step 3: Cross multiply
   89,689,589.77x = 123,771,629.15 × 48,436,478.17
4. Step 4: Simplify right side
   89,689,589.77x = 5,995,061,813,147,128
5. Step 5: Solve for x
   x = 5,995,061,813,147,128/89,689,589.77
6. Step 6: Final answer
   x = 66,842,337.32