Finding the Fourth Proportional to 111,921,577.08, 154,452,389.10 and 64,906,525.89

Step by Step Solution

1. Step 1: Write the proportion equation
   111,921,577.08 : 154,452,389.10 = 64,906,525.89 : x
2. Step 2: Convert to fraction form
   111,921,577.08/154,452,389.10 = 64,906,525.89/x
3. Step 3: Cross multiply
   111,921,577.08x = 154,452,389.10 × 64,906,525.89
4. Step 4: Simplify right side
   111,921,577.08x = 10,024,967,991,891,504
5. Step 5: Solve for x
   x = 10,024,967,991,891,504/111,921,577.08
6. Step 6: Final answer
   x = 89,571,361.07