Finding the Fourth Proportional to 142,514.01, 196,666.74 and 78,851.81

Step by Step Solution

1. Step 1: Write the proportion equation
   142,514.01 : 196,666.74 = 78,851.81 : x
2. Step 2: Convert to fraction form
   142,514.01/196,666.74 = 78,851.81/x
3. Step 3: Cross multiply
   142,514.01x = 196,666.74 × 78,851.81
4. Step 4: Simplify right side
   142,514.01x = 15,507,528,907.47
5. Step 5: Solve for x
   x = 15,507,528,907.47/142,514.01
6. Step 6: Final answer
   x = 108,814.07