Finding the Fourth Proportional to 109,038.72, 163,560 and 35,166.72

Step by Step Solution

1. Step 1: Write the proportion equation
   109,038.72 : 163,560 = 35,166.72 : x
2. Step 2: Convert to fraction form
   109,038.72/163,560 = 35,166.72/x
3. Step 3: Cross multiply
   109,038.72x = 163,560 × 35,166.72
4. Step 4: Simplify right side
   109,038.72x = 5,751,868,723.20
5. Step 5: Solve for x
   x = 5,751,868,723.20/109,038.72
6. Step 6: Final answer
   x = 52,750.70