Finding the Fourth Proportional to 208,836.32, 288,186.81 and 113,341.10

Step by Step Solution

1. Step 1: Write the proportion equation
   208,836.32 : 288,186.81 = 113,341.10 : x
2. Step 2: Convert to fraction form
   208,836.32/288,186.81 = 113,341.10/x
3. Step 3: Cross multiply
   208,836.32x = 288,186.81 × 113,341.10
4. Step 4: Simplify right side
   208,836.32x = 32,663,410,050.89
5. Step 5: Solve for x
   x = 32,663,410,050.89/208,836.32
6. Step 6: Final answer
   x = 156,406.75