Finding the Fourth Proportional to 89,418.84, 123,377.58 and 53,615.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,418.84 : 123,377.58 = 53,615.40 : x
2. Step 2: Convert to fraction form
   89,418.84/123,377.58 = 53,615.40/x
3. Step 3: Cross multiply
   89,418.84x = 123,377.58 × 53,615.40
4. Step 4: Simplify right side
   89,418.84x = 6,614,938,302.73
5. Step 5: Solve for x
   x = 6,614,938,302.73/89,418.84
6. Step 6: Final answer
   x = 73,977.01