Finding the Fourth Proportional to 109,400.29, 164,085.85 and 30,507.91

Step by Step Solution

1. Step 1: Write the proportion equation
   109,400.29 : 164,085.85 = 30,507.91 : x
2. Step 2: Convert to fraction form
   109,400.29/164,085.85 = 30,507.91/x
3. Step 3: Cross multiply
   109,400.29x = 164,085.85 × 30,507.91
4. Step 4: Simplify right side
   109,400.29x = 5,005,915,971.99
5. Step 5: Solve for x
   x = 5,005,915,971.99/109,400.29
6. Step 6: Final answer
   x = 45,757.80