Finding the Fourth Proportional to 111,921,557.02, 154,452,361.38 and 64,906,505.79

Step by Step Solution

1. Step 1: Write the proportion equation
   111,921,557.02 : 154,452,361.38 = 64,906,505.79 : x
2. Step 2: Convert to fraction form
   111,921,557.02/154,452,361.38 = 64,906,505.79/x
3. Step 3: Cross multiply
   111,921,557.02x = 154,452,361.38 × 64,906,505.79
4. Step 4: Simplify right side
   111,921,557.02x = 10,024,963,087,367,546
5. Step 5: Solve for x
   x = 10,024,963,087,367,546/111,921,557.02
6. Step 6: Final answer
   x = 89,571,333.30