Finding the Fourth Proportional to 89,486.62, 123,488.38 and 49,200.07

Step by Step Solution

1. Step 1: Write the proportion equation
   89,486.62 : 123,488.38 = 49,200.07 : x
2. Step 2: Convert to fraction form
   89,486.62/123,488.38 = 49,200.07/x
3. Step 3: Cross multiply
   89,486.62x = 123,488.38 × 49,200.07
4. Step 4: Simplify right side
   89,486.62x = 6,075,636,940.19
5. Step 5: Solve for x
   x = 6,075,636,940.19/89,486.62
6. Step 6: Final answer
   x = 67,894.36