Finding the Fourth Proportional to 12,919,066.06, 17,828,632.20 and 7,955,628.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,919,066.06 : 17,828,632.20 = 7,955,628.56 : x
2. Step 2: Convert to fraction form
   12,919,066.06/17,828,632.20 = 7,955,628.56/x
3. Step 3: Cross multiply
   12,919,066.06x = 17,828,632.20 × 7,955,628.56
4. Step 4: Simplify right side
   12,919,066.06x = 141,837,975,426,912.47
5. Step 5: Solve for x
   x = 141,837,975,426,912.47/12,919,066.06
6. Step 6: Final answer
   x = 10,978,965.11