Finding the Fourth Proportional to 103,529.32, 142,878.18 and 58,212.52

Step by Step Solution

1. Step 1: Write the proportion equation
   103,529.32 : 142,878.18 = 58,212.52 : x
2. Step 2: Convert to fraction form
   103,529.32/142,878.18 = 58,212.52/x
3. Step 3: Cross multiply
   103,529.32x = 142,878.18 × 58,212.52
4. Step 4: Simplify right side
   103,529.32x = 8,317,298,910.81
5. Step 5: Solve for x
   x = 8,317,298,910.81/103,529.32
6. Step 6: Final answer
   x = 80,337.62