Finding the Fourth Proportional to 18,563,128,675.86, 25,617,120,336.18 and 10,105,016,663.10

Step by Step Solution

1. Step 1: Write the proportion equation
   18,563,128,675.86 : 25,617,120,336.18 = 10,105,016,663.10 : x
2. Step 2: Convert to fraction form
   18,563,128,675.86/25,617,120,336.18 = 10,105,016,663.10/x
3. Step 3: Cross multiply
   18,563,128,675.86x = 25,617,120,336.18 × 10,105,016,663.10
4. Step 4: Simplify right side
   18,563,128,675.86x = 258,861,427,857,736,794,112
5. Step 5: Solve for x
   x = 258,861,427,857,736,794,112/18,563,128,675.86
6. Step 6: Final answer
   x = 13,944,924,499.41