Finding the Fourth Proportional to 109,378.72, 164,071.61 and 34,499.57

Step by Step Solution

1. Step 1: Write the proportion equation
   109,378.72 : 164,071.61 = 34,499.57 : x
2. Step 2: Convert to fraction form
   109,378.72/164,071.61 = 34,499.57/x
3. Step 3: Cross multiply
   109,378.72x = 164,071.61 × 34,499.57
4. Step 4: Simplify right side
   109,378.72x = 5,660,399,994.21
5. Step 5: Solve for x
   x = 5,660,399,994.21/109,378.72
6. Step 6: Final answer
   x = 51,750.47