Finding the Fourth Proportional to 159,436.48, 220,014.03 and 99,005.83

Step by Step Solution

1. Step 1: Write the proportion equation
   159,436.48 : 220,014.03 = 99,005.83 : x
2. Step 2: Convert to fraction form
   159,436.48/220,014.03 = 99,005.83/x
3. Step 3: Cross multiply
   159,436.48x = 220,014.03 × 99,005.83
4. Step 4: Simplify right side
   159,436.48x = 21,782,670,551.72
5. Step 5: Solve for x
   x = 21,782,670,551.72/159,436.48
6. Step 6: Final answer
   x = 136,622.88