Finding the Fourth Proportional to 98,662.78, 147,981.34 and 39,499.03

Step by Step Solution

1. Step 1: Write the proportion equation
   98,662.78 : 147,981.34 = 39,499.03 : x
2. Step 2: Convert to fraction form
   98,662.78/147,981.34 = 39,499.03/x
3. Step 3: Cross multiply
   98,662.78x = 147,981.34 × 39,499.03
4. Step 4: Simplify right side
   98,662.78x = 5,845,119,388.10
5. Step 5: Solve for x
   x = 5,845,119,388.10/98,662.78
6. Step 6: Final answer
   x = 59,243.41