Finding the Fourth Proportional to 89,194.64, 123,153.17 and 57,418.89

Step by Step Solution

1. Step 1: Write the proportion equation
   89,194.64 : 123,153.17 = 57,418.89 : x
2. Step 2: Convert to fraction form
   89,194.64/123,153.17 = 57,418.89/x
3. Step 3: Cross multiply
   89,194.64x = 123,153.17 × 57,418.89
4. Step 4: Simplify right side
   89,194.64x = 7,071,318,034.29
5. Step 5: Solve for x
   x = 7,071,318,034.29/89,194.64
6. Step 6: Final answer
   x = 79,279.63