Finding the Fourth Proportional to 188,196.10, 259,693.35 and 111,702.13

Step by Step Solution

1. Step 1: Write the proportion equation
   188,196.10 : 259,693.35 = 111,702.13 : x
2. Step 2: Convert to fraction form
   188,196.10/259,693.35 = 111,702.13/x
3. Step 3: Cross multiply
   188,196.10x = 259,693.35 × 111,702.13
4. Step 4: Simplify right side
   188,196.10x = 29,008,300,341.84
5. Step 5: Solve for x
   x = 29,008,300,341.84/188,196.10
6. Step 6: Final answer
   x = 154,138.69