Finding the Fourth Proportional to 103,528.56, 142,859.52 and 60,518.12

Step by Step Solution

1. Step 1: Write the proportion equation
   103,528.56 : 142,859.52 = 60,518.12 : x
2. Step 2: Convert to fraction form
   103,528.56/142,859.52 = 60,518.12/x
3. Step 3: Cross multiply
   103,528.56x = 142,859.52 × 60,518.12
4. Step 4: Simplify right side
   103,528.56x = 8,645,589,574.50
5. Step 5: Solve for x
   x = 8,645,589,574.50/103,528.56
6. Step 6: Final answer
   x = 83,509.22