Finding the Fourth Proportional to 142,039.48, 196,085.45 and 88,341.81

Step by Step Solution

1. Step 1: Write the proportion equation
   142,039.48 : 196,085.45 = 88,341.81 : x
2. Step 2: Convert to fraction form
   142,039.48/196,085.45 = 88,341.81/x
3. Step 3: Cross multiply
   142,039.48x = 196,085.45 × 88,341.81
4. Step 4: Simplify right side
   142,039.48x = 17,322,543,567.66
5. Step 5: Solve for x
   x = 17,322,543,567.66/142,039.48
6. Step 6: Final answer
   x = 121,955.84