Finding the Fourth Proportional to 104,100.68, 143,658.78 and 56,354.02

Step by Step Solution

1. Step 1: Write the proportion equation
   104,100.68 : 143,658.78 = 56,354.02 : x
2. Step 2: Convert to fraction form
   104,100.68/143,658.78 = 56,354.02/x
3. Step 3: Cross multiply
   104,100.68x = 143,658.78 × 56,354.02
4. Step 4: Simplify right side
   104,100.68x = 8,095,749,761.30
5. Step 5: Solve for x
   x = 8,095,749,761.30/104,100.68
6. Step 6: Final answer
   x = 77,768.46