Finding the Fourth Proportional to 13,358,144, 18,434,238.72 and 7,635,130.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,358,144 : 18,434,238.72 = 7,635,130.88 : x
2. Step 2: Convert to fraction form
   13,358,144/18,434,238.72 = 7,635,130.88/x
3. Step 3: Cross multiply
   13,358,144x = 18,434,238.72 × 7,635,130.88
4. Step 4: Simplify right side
   13,358,144x = 140,747,825,300,363.66
5. Step 5: Solve for x
   x = 140,747,825,300,363.66/13,358,144
6. Step 6: Final answer
   x = 10,536,480.61