Finding the Fourth Proportional to 109,507.79, 164,261.96 and 30,621.89

Step by Step Solution

1. Step 1: Write the proportion equation
   109,507.79 : 164,261.96 = 30,621.89 : x
2. Step 2: Convert to fraction form
   109,507.79/164,261.96 = 30,621.89/x
3. Step 3: Cross multiply
   109,507.79x = 164,261.96 × 30,621.89
4. Step 4: Simplify right side
   109,507.79x = 5,030,011,670.30
5. Step 5: Solve for x
   x = 5,030,011,670.30/109,507.79
6. Step 6: Final answer
   x = 45,932.91