Finding the Fourth Proportional to 109,619.90, 164,417.70 and 30,742.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,619.90 : 164,417.70 = 30,742.10 : x
2. Step 2: Convert to fraction form
   109,619.90/164,417.70 = 30,742.10/x
3. Step 3: Cross multiply
   109,619.90x = 164,417.70 × 30,742.10
4. Step 4: Simplify right side
   109,619.90x = 5,054,545,375.17
5. Step 5: Solve for x
   x = 5,054,545,375.17/109,619.90
6. Step 6: Final answer
   x = 46,109.74