Finding the Fourth Proportional to 103,901.77, 143,384.22 and 56,155

Step by Step Solution

1. Step 1: Write the proportion equation
   103,901.77 : 143,384.22 = 56,155 : x
2. Step 2: Convert to fraction form
   103,901.77/143,384.22 = 56,155/x
3. Step 3: Cross multiply
   103,901.77x = 143,384.22 × 56,155
4. Step 4: Simplify right side
   103,901.77x = 8,051,740,874.10
5. Step 5: Solve for x
   x = 8,051,740,874.10/103,901.77
6. Step 6: Final answer
   x = 77,493.78