Finding the Fourth Proportional to 103,606.56, 142,976.83 and 58,284.57

Step by Step Solution

1. Step 1: Write the proportion equation
   103,606.56 : 142,976.83 = 58,284.57 : x
2. Step 2: Convert to fraction form
   103,606.56/142,976.83 = 58,284.57/x
3. Step 3: Cross multiply
   103,606.56x = 142,976.83 × 58,284.57
4. Step 4: Simplify right side
   103,606.56x = 8,333,343,056.51
5. Step 5: Solve for x
   x = 8,333,343,056.51/103,606.56
6. Step 6: Final answer
   x = 80,432.58