Finding the Fourth Proportional to 136,662.72, 188,606.88 and 79,323.36

Step by Step Solution

1. Step 1: Write the proportion equation
   136,662.72 : 188,606.88 = 79,323.36 : x
2. Step 2: Convert to fraction form
   136,662.72/188,606.88 = 79,323.36/x
3. Step 3: Cross multiply
   136,662.72x = 188,606.88 × 79,323.36
4. Step 4: Simplify right side
   136,662.72x = 14,960,931,440.72
5. Step 5: Solve for x
   x = 14,960,931,440.72/136,662.72
6. Step 6: Final answer
   x = 109,473.39