Finding the Fourth Proportional to 102,963.34, 142,081.56 and 57,630.94

Step by Step Solution

1. Step 1: Write the proportion equation
   102,963.34 : 142,081.56 = 57,630.94 : x
2. Step 2: Convert to fraction form
   102,963.34/142,081.56 = 57,630.94/x
3. Step 3: Cross multiply
   102,963.34x = 142,081.56 × 57,630.94
4. Step 4: Simplify right side
   102,963.34x = 8,188,293,859.47
5. Step 5: Solve for x
   x = 8,188,293,859.47/102,963.34
6. Step 6: Final answer
   x = 79,526.30