Finding the Fourth Proportional to 12,091,386.56, 16,685,357.25 and 6,658,878.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,091,386.56 : 16,685,357.25 = 6,658,878.56 : x
2. Step 2: Convert to fraction form
   12,091,386.56/16,685,357.25 = 6,658,878.56/x
3. Step 3: Cross multiply
   12,091,386.56x = 16,685,357.25 × 6,658,878.56
4. Step 4: Simplify right side
   12,091,386.56x = 111,105,767,657,965.55
5. Step 5: Solve for x
   x = 111,105,767,657,965.55/12,091,386.56
6. Step 6: Final answer
   x = 9,188,835.96