Finding the Fourth Proportional to 102,196.89, 153,239.75 and 35,619.15

Step by Step Solution

1. Step 1: Write the proportion equation
   102,196.89 : 153,239.75 = 35,619.15 : x
2. Step 2: Convert to fraction form
   102,196.89/153,239.75 = 35,619.15/x
3. Step 3: Cross multiply
   102,196.89x = 153,239.75 × 35,619.15
4. Step 4: Simplify right side
   102,196.89x = 5,458,269,463.12
5. Step 5: Solve for x
   x = 5,458,269,463.12/102,196.89
6. Step 6: Final answer
   x = 53,409.35