Finding the Fourth Proportional to 151,564.42, 209,004.06 and 100,559.26

Step by Step Solution

1. Step 1: Write the proportion equation
   151,564.42 : 209,004.06 = 100,559.26 : x
2. Step 2: Convert to fraction form
   151,564.42/209,004.06 = 100,559.26/x
3. Step 3: Cross multiply
   151,564.42x = 209,004.06 × 100,559.26
4. Step 4: Simplify right side
   151,564.42x = 21,017,293,610.60
5. Step 5: Solve for x
   x = 21,017,293,610.60/151,564.42
6. Step 6: Final answer
   x = 138,669.05