Finding the Fourth Proportional to 151,606.59, 209,302.80 and 100,706.56

Step by Step Solution

1. Step 1: Write the proportion equation
   151,606.59 : 209,302.80 = 100,706.56 : x
2. Step 2: Convert to fraction form
   151,606.59/209,302.80 = 100,706.56/x
3. Step 3: Cross multiply
   151,606.59x = 209,302.80 × 100,706.56
4. Step 4: Simplify right side
   151,606.59x = 21,078,164,986.37
5. Step 5: Solve for x
   x = 21,078,164,986.37/151,606.59
6. Step 6: Final answer
   x = 139,031.98