Finding the Fourth Proportional to 188,386.49, 259,914.72 and 115,713.17

Step by Step Solution

1. Step 1: Write the proportion equation
   188,386.49 : 259,914.72 = 115,713.17 : x
2. Step 2: Convert to fraction form
   188,386.49/259,914.72 = 115,713.17/x
3. Step 3: Cross multiply
   188,386.49x = 259,914.72 × 115,713.17
4. Step 4: Simplify right side
   188,386.49x = 30,075,554,881.29
5. Step 5: Solve for x
   x = 30,075,554,881.29/188,386.49
6. Step 6: Final answer
   x = 159,648.15