Finding the Fourth Proportional to 98,291.98, 147,436.75 and 69,321.30

Step by Step Solution

1. Step 1: Write the proportion equation
   98,291.98 : 147,436.75 = 69,321.30 : x
2. Step 2: Convert to fraction form
   98,291.98/147,436.75 = 69,321.30/x
3. Step 3: Cross multiply
   98,291.98x = 147,436.75 × 69,321.30
4. Step 4: Simplify right side
   98,291.98x = 10,220,507,177.78
5. Step 5: Solve for x
   x = 10,220,507,177.78/98,291.98
6. Step 6: Final answer
   x = 103,981.09