Finding the Fourth Proportional to 13,640,799.25, 18,824,304.72 and 7,529,229.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,640,799.25 : 18,824,304.72 = 7,529,229.37 : x
2. Step 2: Convert to fraction form
   13,640,799.25/18,824,304.72 = 7,529,229.37/x
3. Step 3: Cross multiply
   13,640,799.25x = 18,824,304.72 × 7,529,229.37
4. Step 4: Simplify right side
   13,640,799.25x = 141,732,507,967,653.62
5. Step 5: Solve for x
   x = 141,732,507,967,653.62/13,640,799.25
6. Step 6: Final answer
   x = 10,390,337.50