Finding the Fourth Proportional to 312,885.99, 469,050.52 and 113,162.01

Step by Step Solution

1. Step 1: Write the proportion equation
   312,885.99 : 469,050.52 = 113,162.01 : x
2. Step 2: Convert to fraction form
   312,885.99/469,050.52 = 113,162.01/x
3. Step 3: Cross multiply
   312,885.99x = 469,050.52 × 113,162.01
4. Step 4: Simplify right side
   312,885.99x = 53,078,700,761.76
5. Step 5: Solve for x
   x = 53,078,700,761.76/312,885.99
6. Step 6: Final answer
   x = 169,642.31