Finding the Fourth Proportional to 103,620.94, 142,996.89 and 58,908.94

Step by Step Solution

1. Step 1: Write the proportion equation
   103,620.94 : 142,996.89 = 58,908.94 : x
2. Step 2: Convert to fraction form
   103,620.94/142,996.89 = 58,908.94/x
3. Step 3: Cross multiply
   103,620.94x = 142,996.89 × 58,908.94
4. Step 4: Simplify right side
   103,620.94x = 8,423,795,076.61
5. Step 5: Solve for x
   x = 8,423,795,076.61/103,620.94
6. Step 6: Final answer
   x = 81,294.33