Finding the Fourth Proportional to 13,290,683, 18,341,149.88 and 7,179,111.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,290,683 : 18,341,149.88 = 7,179,111.52 : x
2. Step 2: Convert to fraction form
   13,290,683/18,341,149.88 = 7,179,111.52/x
3. Step 3: Cross multiply
   13,290,683x = 18,341,149.88 × 7,179,111.52
4. Step 4: Simplify right side
   13,290,683x = 131,673,160,393,554.61
5. Step 5: Solve for x
   x = 131,673,160,393,554.61/13,290,683
6. Step 6: Final answer
   x = 9,907,177.86