Finding the Fourth Proportional to 104,061.99, 143,606.01 and 56,315.35

Step by Step Solution

1. Step 1: Write the proportion equation
   104,061.99 : 143,606.01 = 56,315.35 : x
2. Step 2: Convert to fraction form
   104,061.99/143,606.01 = 56,315.35/x
3. Step 3: Cross multiply
   104,061.99x = 143,606.01 × 56,315.35
4. Step 4: Simplify right side
   104,061.99x = 8,087,222,145.06
5. Step 5: Solve for x
   x = 8,087,222,145.06/104,061.99
6. Step 6: Final answer
   x = 77,715.43