Finding the Fourth Proportional to 104,109.76, 143,672.25 and 56,363.91

Step by Step Solution

1. Step 1: Write the proportion equation
   104,109.76 : 143,672.25 = 56,363.91 : x
2. Step 2: Convert to fraction form
   104,109.76/143,672.25 = 56,363.91/x
3. Step 3: Cross multiply
   104,109.76x = 143,672.25 × 56,363.91
4. Step 4: Simplify right side
   104,109.76x = 8,097,929,768.50
5. Step 5: Solve for x
   x = 8,097,929,768.50/104,109.76
6. Step 6: Final answer
   x = 77,782.62