Finding the Fourth Proportional to 146,644.32, 202,460.88 and 100,782.96

Step by Step Solution

1. Step 1: Write the proportion equation
   146,644.32 : 202,460.88 = 100,782.96 : x
2. Step 2: Convert to fraction form
   146,644.32/202,460.88 = 100,782.96/x
3. Step 3: Cross multiply
   146,644.32x = 202,460.88 × 100,782.96
4. Step 4: Simplify right side
   146,644.32x = 20,404,606,770.60
5. Step 5: Solve for x
   x = 20,404,606,770.60/146,644.32
6. Step 6: Final answer
   x = 139,143.52