Finding the Fourth Proportional to 89,843.78, 134,680.93 and 39,930.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,843.78 : 134,680.93 = 39,930.98 : x
2. Step 2: Convert to fraction form
   89,843.78/134,680.93 = 39,930.98/x
3. Step 3: Cross multiply
   89,843.78x = 134,680.93 × 39,930.98
4. Step 4: Simplify right side
   89,843.78x = 5,377,940,748.98
5. Step 5: Solve for x
   x = 5,377,940,748.98/89,843.78
6. Step 6: Final answer
   x = 59,858.80