Finding the Fourth Proportional to 109,620.81, 164,435.81 and 34,739.31

Step by Step Solution

1. Step 1: Write the proportion equation
   109,620.81 : 164,435.81 = 34,739.31 : x
2. Step 2: Convert to fraction form
   109,620.81/164,435.81 = 34,739.31/x
3. Step 3: Cross multiply
   109,620.81x = 164,435.81 × 34,739.31
4. Step 4: Simplify right side
   109,620.81x = 5,712,386,404.99
5. Step 5: Solve for x
   x = 5,712,386,404.99/109,620.81
6. Step 6: Final answer
   x = 52,110.42