Finding the Fourth Proportional to 140,587.30, 210,647.64 and 98,946.82

Step by Step Solution

1. Step 1: Write the proportion equation
   140,587.30 : 210,647.64 = 98,946.82 : x
2. Step 2: Convert to fraction form
   140,587.30/210,647.64 = 98,946.82/x
3. Step 3: Cross multiply
   140,587.30x = 210,647.64 × 98,946.82
4. Step 4: Simplify right side
   140,587.30x = 20,842,914,118.50
5. Step 5: Solve for x
   x = 20,842,914,118.50/140,587.30
6. Step 6: Final answer
   x = 148,256.02