Finding the Fourth Proportional to 12,978,808.52, 19,468,664.94 and 4,459,083.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,978,808.52 : 19,468,664.94 = 4,459,083.08 : x
2. Step 2: Convert to fraction form
   12,978,808.52/19,468,664.94 = 4,459,083.08/x
3. Step 3: Cross multiply
   12,978,808.52x = 19,468,664.94 × 4,459,083.08
4. Step 4: Simplify right side
   12,978,808.52x = 86,812,394,424,143.22
5. Step 5: Solve for x
   x = 86,812,394,424,143.22/12,978,808.52
6. Step 6: Final answer
   x = 6,688,779.97