Finding the Fourth Proportional to 12,912,943.35, 17,820,667.41 and 7,111,723.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,912,943.35 : 17,820,667.41 = 7,111,723.62 : x
2. Step 2: Convert to fraction form
   12,912,943.35/17,820,667.41 = 7,111,723.62/x
3. Step 3: Cross multiply
   12,912,943.35x = 17,820,667.41 × 7,111,723.62
4. Step 4: Simplify right side
   12,912,943.35x = 126,735,661,343,861.23
5. Step 5: Solve for x
   x = 126,735,661,343,861.23/12,912,943.35
6. Step 6: Final answer
   x = 9,814,622.27