Finding the Fourth Proportional to 81,530.57, 112,464.52 and 51,267.98

Step by Step Solution

1. Step 1: Write the proportion equation
   81,530.57 : 112,464.52 = 51,267.98 : x
2. Step 2: Convert to fraction form
   81,530.57/112,464.52 = 51,267.98/x
3. Step 3: Cross multiply
   81,530.57x = 112,464.52 × 51,267.98
4. Step 4: Simplify right side
   81,530.57x = 5,765,828,071.58
5. Step 5: Solve for x
   x = 5,765,828,071.58/81,530.57
6. Step 6: Final answer
   x = 70,719.83