Finding the Fourth Proportional to 12,643,066.71, 18,956,920.05 and 4,957,503.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,643,066.71 : 18,956,920.05 = 4,957,503.48 : x
2. Step 2: Convert to fraction form
   12,643,066.71/18,956,920.05 = 4,957,503.48/x
3. Step 3: Cross multiply
   12,643,066.71x = 18,956,920.05 × 4,957,503.48
4. Step 4: Simplify right side
   12,643,066.71x = 93,978,997,117,956.78
5. Step 5: Solve for x
   x = 93,978,997,117,956.78/12,643,066.71
6. Step 6: Final answer
   x = 7,433,243.79