Finding the Fourth Proportional to 10,667,468.78, 14,721,106.89 and 5,772,690.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667,468.78 : 14,721,106.89 = 5,772,690.87 : x
2. Step 2: Convert to fraction form
   10,667,468.78/14,721,106.89 = 5,772,690.87/x
3. Step 3: Cross multiply
   10,667,468.78x = 14,721,106.89 × 5,772,690.87
4. Step 4: Simplify right side
   10,667,468.78x = 84,980,399,340,197.09
5. Step 5: Solve for x
   x = 84,980,399,340,197.09/10,667,468.78
6. Step 6: Final answer
   x = 7,966,313.39