Finding the Fourth Proportional to 142,156.08, 213,175.18 and 57,859.03

Step by Step Solution

1. Step 1: Write the proportion equation
   142,156.08 : 213,175.18 = 57,859.03 : x
2. Step 2: Convert to fraction form
   142,156.08/213,175.18 = 57,859.03/x
3. Step 3: Cross multiply
   142,156.08x = 213,175.18 × 57,859.03
4. Step 4: Simplify right side
   142,156.08x = 12,334,108,845.58
5. Step 5: Solve for x
   x = 12,334,108,845.58/142,156.08
6. Step 6: Final answer
   x = 86,764.55