Finding the Fourth Proportional to 104,103.72, 143,663.18 and 56,357.06

Step by Step Solution

1. Step 1: Write the proportion equation
   104,103.72 : 143,663.18 = 56,357.06 : x
2. Step 2: Convert to fraction form
   104,103.72/143,663.18 = 56,357.06/x
3. Step 3: Cross multiply
   104,103.72x = 143,663.18 × 56,357.06
4. Step 4: Simplify right side
   104,103.72x = 8,096,434,532.42
5. Step 5: Solve for x
   x = 8,096,434,532.42/104,103.72
6. Step 6: Final answer
   x = 77,772.77