Finding the Fourth Proportional to 123,953.99, 185,897.77 and 53,816.63

Step by Step Solution

1. Step 1: Write the proportion equation
   123,953.99 : 185,897.77 = 53,816.63 : x
2. Step 2: Convert to fraction form
   123,953.99/185,897.77 = 53,816.63/x
3. Step 3: Cross multiply
   123,953.99x = 185,897.77 × 53,816.63
4. Step 4: Simplify right side
   123,953.99x = 10,004,390,441.88
5. Step 5: Solve for x
   x = 10,004,390,441.88/123,953.99
6. Step 6: Final answer
   x = 80,710.52