Finding the Fourth Proportional to 23,491,885,128.48, 32,419,656,838.08 and 12,786,488,412.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,491,885,128.48 : 32,419,656,838.08 = 12,786,488,412.12 : x
2. Step 2: Convert to fraction form
   23,491,885,128.48/32,419,656,838.08 = 12,786,488,412.12/x
3. Step 3: Cross multiply
   23,491,885,128.48x = 32,419,656,838.08 × 12,786,488,412.12
4. Step 4: Simplify right side
   23,491,885,128.48x = 414,533,566,485,016,870,912
5. Step 5: Solve for x
   x = 414,533,566,485,016,870,912/23,491,885,128.48
6. Step 6: Final answer
   x = 17,645,819,576.33