Finding the Fourth Proportional to 152,144.23, 210,131.37 and 103,662.09

Step by Step Solution

1. Step 1: Write the proportion equation
   152,144.23 : 210,131.37 = 103,662.09 : x
2. Step 2: Convert to fraction form
   152,144.23/210,131.37 = 103,662.09/x
3. Step 3: Cross multiply
   152,144.23x = 210,131.37 × 103,662.09
4. Step 4: Simplify right side
   152,144.23x = 21,782,656,988.76
5. Step 5: Solve for x
   x = 21,782,656,988.76/152,144.23
6. Step 6: Final answer
   x = 143,171.10