Finding the Fourth Proportional to 172,700.16, 259,109.06 and 105,367.02

Step by Step Solution

1. Step 1: Write the proportion equation
   172,700.16 : 259,109.06 = 105,367.02 : x
2. Step 2: Convert to fraction form
   172,700.16/259,109.06 = 105,367.02/x
3. Step 3: Cross multiply
   172,700.16x = 259,109.06 × 105,367.02
4. Step 4: Simplify right side
   172,700.16x = 27,301,548,980.37
5. Step 5: Solve for x
   x = 27,301,548,980.37/172,700.16
6. Step 6: Final answer
   x = 158,086.41