Finding the Fourth Proportional to 142,359.48, 213,468.78 and 47,557.14

Step by Step Solution

1. Step 1: Write the proportion equation
   142,359.48 : 213,468.78 = 47,557.14 : x
2. Step 2: Convert to fraction form
   142,359.48/213,468.78 = 47,557.14/x
3. Step 3: Cross multiply
   142,359.48x = 213,468.78 × 47,557.14
4. Step 4: Simplify right side
   142,359.48x = 10,151,964,656.09
5. Step 5: Solve for x
   x = 10,151,964,656.09/142,359.48
6. Step 6: Final answer
   x = 71,312.18