Finding the Fourth Proportional to 142,448.72, 213,594.18 and 58,267.99

Step by Step Solution

1. Step 1: Write the proportion equation
   142,448.72 : 213,594.18 = 58,267.99 : x
2. Step 2: Convert to fraction form
   142,448.72/213,594.18 = 58,267.99/x
3. Step 3: Cross multiply
   142,448.72x = 213,594.18 × 58,267.99
4. Step 4: Simplify right side
   142,448.72x = 12,445,703,010.31
5. Step 5: Solve for x
   x = 12,445,703,010.31/142,448.72
6. Step 6: Final answer
   x = 87,369.71