Finding the Fourth Proportional to 109,576.08, 164,300.73 and 42,938.19

Step by Step Solution

1. Step 1: Write the proportion equation
   109,576.08 : 164,300.73 = 42,938.19 : x
2. Step 2: Convert to fraction form
   109,576.08/164,300.73 = 42,938.19/x
3. Step 3: Cross multiply
   109,576.08x = 164,300.73 × 42,938.19
4. Step 4: Simplify right side
   109,576.08x = 7,054,775,961.88
5. Step 5: Solve for x
   x = 7,054,775,961.88/109,576.08
6. Step 6: Final answer
   x = 64,382.45