Finding the Fourth Proportional to 89,433.36, 123,265.80 and 61,089.84

Step by Step Solution

1. Step 1: Write the proportion equation
   89,433.36 : 123,265.80 = 61,089.84 : x
2. Step 2: Convert to fraction form
   89,433.36/123,265.80 = 61,089.84/x
3. Step 3: Cross multiply
   89,433.36x = 123,265.80 × 61,089.84
4. Step 4: Simplify right side
   89,433.36x = 7,530,287,999.47
5. Step 5: Solve for x
   x = 7,530,287,999.47/89,433.36
6. Step 6: Final answer
   x = 84,199.99