Finding the Fourth Proportional to 111,921,569.29, 154,452,378.33 and 64,906,518.07

Step by Step Solution

1. Step 1: Write the proportion equation
   111,921,569.29 : 154,452,378.33 = 64,906,518.07 : x
2. Step 2: Convert to fraction form
   111,921,569.29/154,452,378.33 = 64,906,518.07/x
3. Step 3: Cross multiply
   111,921,569.29x = 154,452,378.33 × 64,906,518.07
4. Step 4: Simplify right side
   111,921,569.29x = 10,024,966,085,030,622
5. Step 5: Solve for x
   x = 10,024,966,085,030,622/111,921,569.29
6. Step 6: Final answer
   x = 89,571,350.26