Finding the Fourth Proportional to 188,428.64, 259,967.16 and 116,782.52

Step by Step Solution

1. Step 1: Write the proportion equation
   188,428.64 : 259,967.16 = 116,782.52 : x
2. Step 2: Convert to fraction form
   188,428.64/259,967.16 = 116,782.52/x
3. Step 3: Cross multiply
   188,428.64x = 259,967.16 × 116,782.52
4. Step 4: Simplify right side
   188,428.64x = 30,359,620,062.04
5. Step 5: Solve for x
   x = 30,359,620,062.04/188,428.64
6. Step 6: Final answer
   x = 161,119.99