Finding the Fourth Proportional to 158,801.31, 219,248.36 and 98,436.15

Step by Step Solution

1. Step 1: Write the proportion equation
   158,801.31 : 219,248.36 = 98,436.15 : x
2. Step 2: Convert to fraction form
   158,801.31/219,248.36 = 98,436.15/x
3. Step 3: Cross multiply
   158,801.31x = 219,248.36 × 98,436.15
4. Step 4: Simplify right side
   158,801.31x = 21,581,963,960.03
5. Step 5: Solve for x
   x = 21,581,963,960.03/158,801.31
6. Step 6: Final answer
   x = 135,905.45