Finding the Fourth Proportional to 142,095.01, 212,939.61 and 104,359.15

Step by Step Solution

1. Step 1: Write the proportion equation
   142,095.01 : 212,939.61 = 104,359.15 : x
2. Step 2: Convert to fraction form
   142,095.01/212,939.61 = 104,359.15/x
3. Step 3: Cross multiply
   142,095.01x = 212,939.61 × 104,359.15
4. Step 4: Simplify right side
   142,095.01x = 22,222,196,700.93
5. Step 5: Solve for x
   x = 22,222,196,700.93/142,095.01
6. Step 6: Final answer
   x = 156,389.71