Finding the Fourth Proportional to 108,460.86, 162,479.37 and 74,720.91

Step by Step Solution

1. Step 1: Write the proportion equation
   108,460.86 : 162,479.37 = 74,720.91 : x
2. Step 2: Convert to fraction form
   108,460.86/162,479.37 = 74,720.91/x
3. Step 3: Cross multiply
   108,460.86x = 162,479.37 × 74,720.91
4. Step 4: Simplify right side
   108,460.86x = 12,140,606,382.63
5. Step 5: Solve for x
   x = 12,140,606,382.63/108,460.86
6. Step 6: Final answer
   x = 111,935.37