Finding the Fourth Proportional to 13,300,068.06, 18,354,085.92 and 7,188,496.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300,068.06 : 18,354,085.92 = 7,188,496.56 : x
2. Step 2: Convert to fraction form
   13,300,068.06/18,354,085.92 = 7,188,496.56/x
3. Step 3: Cross multiply
   13,300,068.06x = 18,354,085.92 × 7,188,496.56
4. Step 4: Simplify right side
   13,300,068.06x = 131,938,283,497,864.44
5. Step 5: Solve for x
   x = 131,938,283,497,864.44/13,300,068.06
6. Step 6: Final answer
   x = 9,920,120.93