Finding the Fourth Proportional to 12,806,426.43, 19,210,985.33 and 4,171,199.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,806,426.43 : 19,210,985.33 = 4,171,199.31 : x
2. Step 2: Convert to fraction form
   12,806,426.43/19,210,985.33 = 4,171,199.31/x
3. Step 3: Cross multiply
   12,806,426.43x = 19,210,985.33 × 4,171,199.31
4. Step 4: Simplify right side
   12,806,426.43x = 80,132,848,732,060.12
5. Step 5: Solve for x
   x = 80,132,848,732,060.12/12,806,426.43
6. Step 6: Final answer
   x = 6,257,237.27