Finding the Fourth Proportional to 143,021.89, 214,491.93 and 57,632.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,021.89 : 214,491.93 = 57,632.50 : x
2. Step 2: Convert to fraction form
   143,021.89/214,491.93 = 57,632.50/x
3. Step 3: Cross multiply
   143,021.89x = 214,491.93 × 57,632.50
4. Step 4: Simplify right side
   143,021.89x = 12,361,706,155.73
5. Step 5: Solve for x
   x = 12,361,706,155.73/143,021.89
6. Step 6: Final answer
   x = 86,432.27