Finding the Fourth Proportional to 12,843,609.77, 19,262,466.50 and 7,657,686.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,843,609.77 : 19,262,466.50 = 7,657,686.71 : x
2. Step 2: Convert to fraction form
   12,843,609.77/19,262,466.50 = 7,657,686.71/x
3. Step 3: Cross multiply
   12,843,609.77x = 19,262,466.50 × 7,657,686.71
4. Step 4: Simplify right side
   12,843,609.77x = 147,505,933,584,269.47
5. Step 5: Solve for x
   x = 147,505,933,584,269.47/12,843,609.77
6. Step 6: Final answer
   x = 11,484,772.29