Finding the Fourth Proportional to 103,852.55, 143,316.59 and 56,105.88

Step by Step Solution

1. Step 1: Write the proportion equation
   103,852.55 : 143,316.59 = 56,105.88 : x
2. Step 2: Convert to fraction form
   103,852.55/143,316.59 = 56,105.88/x
3. Step 3: Cross multiply
   103,852.55x = 143,316.59 × 56,105.88
4. Step 4: Simplify right side
   103,852.55x = 8,040,903,400.55
5. Step 5: Solve for x
   x = 8,040,903,400.55/103,852.55
6. Step 6: Final answer
   x = 77,426.15