Finding the Fourth Proportional to 312,805.56, 469,109.25 and 113,099.52

Step by Step Solution

1. Step 1: Write the proportion equation
   312,805.56 : 469,109.25 = 113,099.52 : x
2. Step 2: Convert to fraction form
   312,805.56/469,109.25 = 113,099.52/x
3. Step 3: Cross multiply
   312,805.56x = 469,109.25 × 113,099.52
4. Step 4: Simplify right side
   312,805.56x = 53,056,031,002.56
5. Step 5: Solve for x
   x = 53,056,031,002.56/312,805.56
6. Step 6: Final answer
   x = 169,613.45