Finding the Fourth Proportional to 142,150.17, 213,224.21 and 57,890.53

Step by Step Solution

1. Step 1: Write the proportion equation
   142,150.17 : 213,224.21 = 57,890.53 : x
2. Step 2: Convert to fraction form
   142,150.17/213,224.21 = 57,890.53/x
3. Step 3: Cross multiply
   142,150.17x = 213,224.21 × 57,890.53
4. Step 4: Simplify right side
   142,150.17x = 12,343,662,525.73
5. Step 5: Solve for x
   x = 12,343,662,525.73/142,150.17
6. Step 6: Final answer
   x = 86,835.37