Finding the Fourth Proportional to 104,100.93, 143,660.43 and 56,355.30

Step by Step Solution

1. Step 1: Write the proportion equation
   104,100.93 : 143,660.43 = 56,355.30 : x
2. Step 2: Convert to fraction form
   104,100.93/143,660.43 = 56,355.30/x
3. Step 3: Cross multiply
   104,100.93x = 143,660.43 × 56,355.30
4. Step 4: Simplify right side
   104,100.93x = 8,096,026,630.78
5. Step 5: Solve for x
   x = 8,096,026,630.78/104,100.93
6. Step 6: Final answer
   x = 77,770.93