Finding the Fourth Proportional to 151,607.59, 209,304.18 and 100,707.56

Step by Step Solution

1. Step 1: Write the proportion equation
   151,607.59 : 209,304.18 = 100,707.56 : x
2. Step 2: Convert to fraction form
   151,607.59/209,304.18 = 100,707.56/x
3. Step 3: Cross multiply
   151,607.59x = 209,304.18 × 100,707.56
4. Step 4: Simplify right side
   151,607.59x = 21,078,513,265.60
5. Step 5: Solve for x
   x = 21,078,513,265.60/151,607.59
6. Step 6: Final answer
   x = 139,033.36