Finding the Fourth Proportional to 12,878,916.96, 19,293,133.68 and 7,476,238.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,878,916.96 : 19,293,133.68 = 7,476,238.56 : x
2. Step 2: Convert to fraction form
   12,878,916.96/19,293,133.68 = 7,476,238.56/x
3. Step 3: Cross multiply
   12,878,916.96x = 19,293,133.68 × 7,476,238.56
4. Step 4: Simplify right side
   12,878,916.96x = 144,240,069,961,650.69
5. Step 5: Solve for x
   x = 144,240,069,961,650.69/12,878,916.96
6. Step 6: Final answer
   x = 11,199,704.94