Finding the Fourth Proportional to 141,380.99, 212,222.55 and 57,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   141,380.99 : 212,222.55 = 57,196.18 : x
2. Step 2: Convert to fraction form
   141,380.99/212,222.55 = 57,196.18/x
3. Step 3: Cross multiply
   141,380.99x = 212,222.55 × 57,196.18
4. Step 4: Simplify right side
   141,380.99x = 12,138,319,169.86
5. Step 5: Solve for x
   x = 12,138,319,169.86/141,380.99
6. Step 6: Final answer
   x = 85,855.38