Finding the Fourth Proportional to 123,764.99, 185,617.72 and 57,141.11

Step by Step Solution

1. Step 1: Write the proportion equation
   123,764.99 : 185,617.72 = 57,141.11 : x
2. Step 2: Convert to fraction form
   123,764.99/185,617.72 = 57,141.11/x
3. Step 3: Cross multiply
   123,764.99x = 185,617.72 × 57,141.11
4. Step 4: Simplify right side
   123,764.99x = 10,606,402,556.47
5. Step 5: Solve for x
   x = 10,606,402,556.47/123,764.99
6. Step 6: Final answer
   x = 85,697.92