Finding the Fourth Proportional to 105,215.00, 145,195.83 and 57,468.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,215.00 : 145,195.83 = 57,468.38 : x
2. Step 2: Convert to fraction form
   105,215.00/145,195.83 = 57,468.38/x
3. Step 3: Cross multiply
   105,215.00x = 145,195.83 × 57,468.38
4. Step 4: Simplify right side
   105,215.00x = 8,344,168,406.88
5. Step 5: Solve for x
   x = 8,344,168,406.88/105,215.00
6. Step 6: Final answer
   x = 79,305.89