Finding the Fourth Proportional to 142,498.20, 196,649.46 and 88,804.92

Step by Step Solution

1. Step 1: Write the proportion equation
   142,498.20 : 196,649.46 = 88,804.92 : x
2. Step 2: Convert to fraction form
   142,498.20/196,649.46 = 88,804.92/x
3. Step 3: Cross multiply
   142,498.20x = 196,649.46 × 88,804.92
4. Step 4: Simplify right side
   142,498.20x = 17,463,439,563.34
5. Step 5: Solve for x
   x = 17,463,439,563.34/142,498.20
6. Step 6: Final answer
   x = 122,552.00