Finding the Fourth Proportional to 188,300.49, 259,856.73 and 103,417.55

Step by Step Solution

1. Step 1: Write the proportion equation
   188,300.49 : 259,856.73 = 103,417.55 : x
2. Step 2: Convert to fraction form
   188,300.49/259,856.73 = 103,417.55/x
3. Step 3: Cross multiply
   188,300.49x = 259,856.73 × 103,417.55
4. Step 4: Simplify right side
   188,300.49x = 26,873,745,068.33
5. Step 5: Solve for x
   x = 26,873,745,068.33/188,300.49
6. Step 6: Final answer
   x = 142,717.34