Finding the Fourth Proportional to 105,308.34, 158,102.64 and 55,423.47

Step by Step Solution

1. Step 1: Write the proportion equation
   105,308.34 : 158,102.64 = 55,423.47 : x
2. Step 2: Convert to fraction form
   105,308.34/158,102.64 = 55,423.47/x
3. Step 3: Cross multiply
   105,308.34x = 158,102.64 × 55,423.47
4. Step 4: Simplify right side
   105,308.34x = 8,762,596,924.96
5. Step 5: Solve for x
   x = 8,762,596,924.96/105,308.34
6. Step 6: Final answer
   x = 83,208.96