Finding the Fourth Proportional to 13,469,164.38, 18,549,660.15 and 12,604,667.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,469,164.38 : 18,549,660.15 = 12,604,667.58 : x
2. Step 2: Convert to fraction form
   13,469,164.38/18,549,660.15 = 12,604,667.58/x
3. Step 3: Cross multiply
   13,469,164.38x = 18,549,660.15 × 12,604,667.58
4. Step 4: Simplify right side
   13,469,164.38x = 233,812,299,912,722.91
5. Step 5: Solve for x
   x = 233,812,299,912,722.91/13,469,164.38
6. Step 6: Final answer
   x = 17,359,079.84