Finding the Fourth Proportional to 89,307.78, 123,179.76 and 59,118.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,307.78 : 123,179.76 = 59,118.96 : x
2. Step 2: Convert to fraction form
   89,307.78/123,179.76 = 59,118.96/x
3. Step 3: Cross multiply
   89,307.78x = 123,179.76 × 59,118.96
4. Step 4: Simplify right side
   89,307.78x = 7,282,259,304.25
5. Step 5: Solve for x
   x = 7,282,259,304.25/89,307.78
6. Step 6: Final answer
   x = 81,541.15