Finding the Fourth Proportional to 12,704,426.78, 17,531,801.06 and 7,122,303.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,704,426.78 : 17,531,801.06 = 7,122,303.42 : x
2. Step 2: Convert to fraction form
   12,704,426.78/17,531,801.06 = 7,122,303.42/x
3. Step 3: Cross multiply
   12,704,426.78x = 17,531,801.06 × 7,122,303.42
4. Step 4: Simplify right side
   12,704,426.78x = 124,866,806,648,397.61
5. Step 5: Solve for x
   x = 124,866,806,648,397.61/12,704,426.78
6. Step 6: Final answer
   x = 9,828,606.11