Finding the Fourth Proportional to 109,411.10, 164,068.05 and 42,829.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,411.10 : 164,068.05 = 42,829.10 : x
2. Step 2: Convert to fraction form
   109,411.10/164,068.05 = 42,829.10/x
3. Step 3: Cross multiply
   109,411.10x = 164,068.05 × 42,829.10
4. Step 4: Simplify right side
   109,411.10x = 7,026,886,920.26
5. Step 5: Solve for x
   x = 7,026,886,920.26/109,411.10
6. Step 6: Final answer
   x = 64,224.63