Finding the Fourth Proportional to 12,787,099.51, 19,192,775.54 and 7,914,667.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,787,099.51 : 19,192,775.54 = 7,914,667.34 : x
2. Step 2: Convert to fraction form
   12,787,099.51/19,192,775.54 = 7,914,667.34/x
3. Step 3: Cross multiply
   12,787,099.51x = 19,192,775.54 × 7,914,667.34
4. Step 4: Simplify right side
   12,787,099.51x = 151,904,433,730,388.84
5. Step 5: Solve for x
   x = 151,904,433,730,388.84/12,787,099.51
6. Step 6: Final answer
   x = 11,879,506.66