Finding the Fourth Proportional to 142,745.06, 196,899.10 and 91,824.18

Step by Step Solution

1. Step 1: Write the proportion equation
   142,745.06 : 196,899.10 = 91,824.18 : x
2. Step 2: Convert to fraction form
   142,745.06/196,899.10 = 91,824.18/x
3. Step 3: Cross multiply
   142,745.06x = 196,899.10 × 91,824.18
4. Step 4: Simplify right side
   142,745.06x = 18,080,099,056.37
5. Step 5: Solve for x
   x = 18,080,099,056.37/142,745.06
6. Step 6: Final answer
   x = 126,660.07