Finding the Fourth Proportional to 98,909, 136,494.42 and 54,196.04

Step by Step Solution

1. Step 1: Write the proportion equation
   98,909 : 136,494.42 = 54,196.04 : x
2. Step 2: Convert to fraction form
   98,909/136,494.42 = 54,196.04/x
3. Step 3: Cross multiply
   98,909x = 136,494.42 × 54,196.04
4. Step 4: Simplify right side
   98,909x = 7,397,457,046.10
5. Step 5: Solve for x
   x = 7,397,457,046.10/98,909
6. Step 6: Final answer
   x = 74,790.54