Finding the Fourth Proportional to 12,648,112.86, 17,456,462.55 and 7,756,027.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,648,112.86 : 17,456,462.55 = 7,756,027.50 : x
2. Step 2: Convert to fraction form
   12,648,112.86/17,456,462.55 = 7,756,027.50/x
3. Step 3: Cross multiply
   12,648,112.86x = 17,456,462.55 × 7,756,027.50
4. Step 4: Simplify right side
   12,648,112.86x = 135,392,803,590,520.12
5. Step 5: Solve for x
   x = 135,392,803,590,520.12/12,648,112.86
6. Step 6: Final answer
   x = 10,704,585.35