Finding the Fourth Proportional to 103,606.37, 142,976.58 and 58,284.38

Step by Step Solution

1. Step 1: Write the proportion equation
   103,606.37 : 142,976.58 = 58,284.38 : x
2. Step 2: Convert to fraction form
   103,606.37/142,976.58 = 58,284.38/x
3. Step 3: Cross multiply
   103,606.37x = 142,976.58 × 58,284.38
4. Step 4: Simplify right side
   103,606.37x = 8,333,301,319.82
5. Step 5: Solve for x
   x = 8,333,301,319.82/103,606.37
6. Step 6: Final answer
   x = 80,432.33