Finding the Fourth Proportional to 81,546.16, 112,429.52 and 52,815.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,546.16 : 112,429.52 = 52,815.12 : x
2. Step 2: Convert to fraction form
   81,546.16/112,429.52 = 52,815.12/x
3. Step 3: Cross multiply
   81,546.16x = 112,429.52 × 52,815.12
4. Step 4: Simplify right side
   81,546.16x = 5,937,978,590.34
5. Step 5: Solve for x
   x = 5,937,978,590.34/81,546.16
6. Step 6: Final answer
   x = 72,817.39