Finding the Fourth Proportional to 142,408.96, 213,611.04 and 58,150.56

Step by Step Solution

1. Step 1: Write the proportion equation
   142,408.96 : 213,611.04 = 58,150.56 : x
2. Step 2: Convert to fraction form
   142,408.96/213,611.04 = 58,150.56/x
3. Step 3: Cross multiply
   142,408.96x = 213,611.04 × 58,150.56
4. Step 4: Simplify right side
   142,408.96x = 12,421,601,598.18
5. Step 5: Solve for x
   x = 12,421,601,598.18/142,408.96
6. Step 6: Final answer
   x = 87,224.86