Finding the Fourth Proportional to 140,737.98, 210,990.69 and 65,821.26

Step by Step Solution

1. Step 1: Write the proportion equation
   140,737.98 : 210,990.69 = 65,821.26 : x
2. Step 2: Convert to fraction form
   140,737.98/210,990.69 = 65,821.26/x
3. Step 3: Cross multiply
   140,737.98x = 210,990.69 × 65,821.26
4. Step 4: Simplify right side
   140,737.98x = 13,887,673,064.07
5. Step 5: Solve for x
   x = 13,887,673,064.07/140,737.98
6. Step 6: Final answer
   x = 98,677.51