Finding the Fourth Proportional to 136,501.08, 188,555.49 and 123,768.69

Step by Step Solution

1. Step 1: Write the proportion equation
   136,501.08 : 188,555.49 = 123,768.69 : x
2. Step 2: Convert to fraction form
   136,501.08/188,555.49 = 123,768.69/x
3. Step 3: Cross multiply
   136,501.08x = 188,555.49 × 123,768.69
4. Step 4: Simplify right side
   136,501.08x = 23,337,265,989.61
5. Step 5: Solve for x
   x = 23,337,265,989.61/136,501.08
6. Step 6: Final answer
   x = 170,967.63