Finding the Fourth Proportional to 104,902.98, 144,819.72 and 71,090.16

Step by Step Solution

1. Step 1: Write the proportion equation
   104,902.98 : 144,819.72 = 71,090.16 : x
2. Step 2: Convert to fraction form
   104,902.98/144,819.72 = 71,090.16/x
3. Step 3: Cross multiply
   104,902.98x = 144,819.72 × 71,090.16
4. Step 4: Simplify right side
   104,902.98x = 10,295,257,065.96
5. Step 5: Solve for x
   x = 10,295,257,065.96/104,902.98
6. Step 6: Final answer
   x = 98,140.75