Finding the Fourth Proportional to 34,308.51, 51,468.90 and 12,134.76

Step by Step Solution

1. Step 1: Write the proportion equation
   34,308.51 : 51,468.90 = 12,134.76 : x
2. Step 2: Convert to fraction form
   34,308.51/51,468.90 = 12,134.76/x
3. Step 3: Cross multiply
   34,308.51x = 51,468.90 × 12,134.76
4. Step 4: Simplify right side
   34,308.51x = 624,562,748.96
5. Step 5: Solve for x
   x = 624,562,748.96/34,308.51
6. Step 6: Final answer
   x = 18,204.31