Finding the Fourth Proportional to 9,136,399,429.86, 12,612,362,485.05 and 5,754,279,233.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136,399,429.86 : 12,612,362,485.05 = 5,754,279,233.78 : x
2. Step 2: Convert to fraction form
   9,136,399,429.86/12,612,362,485.05 = 5,754,279,233.78/x
3. Step 3: Cross multiply
   9,136,399,429.86x = 12,612,362,485.05 × 5,754,279,233.78
4. Step 4: Simplify right side
   9,136,399,429.86x = 72,575,055,536,629,121,024
5. Step 5: Solve for x
   x = 72,575,055,536,629,121,024/9,136,399,429.86
6. Step 6: Final answer
   x = 7,943,507,296.70