Finding the Fourth Proportional to 191,186.58, 286,818.15 and 107,066.37

Step by Step Solution

1. Step 1: Write the proportion equation
   191,186.58 : 286,818.15 = 107,066.37 : x
2. Step 2: Convert to fraction form
   191,186.58/286,818.15 = 107,066.37/x
3. Step 3: Cross multiply
   191,186.58x = 286,818.15 × 107,066.37
4. Step 4: Simplify right side
   191,186.58x = 30,708,578,170.62
5. Step 5: Solve for x
   x = 30,708,578,170.62/191,186.58
6. Step 6: Final answer
   x = 160,620.99