Finding the Fourth Proportional to 21,923,291,573.60, 30,248,957,005.99 and 12,407,843,319.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,923,291,573.60 : 30,248,957,005.99 = 12,407,843,319.53 : x
2. Step 2: Convert to fraction form
   21,923,291,573.60/30,248,957,005.99 = 12,407,843,319.53/x
3. Step 3: Cross multiply
   21,923,291,573.60x = 30,248,957,005.99 × 12,407,843,319.53
4. Step 4: Simplify right side
   21,923,291,573.60x = 375,324,319,109,322,309,632
5. Step 5: Solve for x
   x = 375,324,319,109,322,309,632/21,923,291,573.60
6. Step 6: Final answer
   x = 17,119,889,038.99