Finding the Fourth Proportional to 21,613,342,175.60, 29,824,783,707.74 and 13,154,231,031.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,613,342,175.60 : 29,824,783,707.74 = 13,154,231,031.89 : x
2. Step 2: Convert to fraction form
   21,613,342,175.60/29,824,783,707.74 = 13,154,231,031.89/x
3. Step 3: Cross multiply
   21,613,342,175.60x = 29,824,783,707.74 × 13,154,231,031.89
4. Step 4: Simplify right side
   21,613,342,175.60x = 392,322,095,367,545,946,112
5. Step 5: Solve for x
   x = 392,322,095,367,545,946,112/21,613,342,175.60
6. Step 6: Final answer
   x = 18,151,847,695.75