Finding the Fourth Proportional to 111,921,560.02, 154,452,365.52 and 64,906,508.80

Step by Step Solution

1. Step 1: Write the proportion equation
   111,921,560.02 : 154,452,365.52 = 64,906,508.80 : x
2. Step 2: Convert to fraction form
   111,921,560.02/154,452,365.52 = 64,906,508.80/x
3. Step 3: Cross multiply
   111,921,560.02x = 154,452,365.52 × 64,906,508.80
4. Step 4: Simplify right side
   111,921,560.02x = 10,024,963,821,804,696
5. Step 5: Solve for x
   x = 10,024,963,821,804,696/111,921,560.02
6. Step 6: Final answer
   x = 89,571,337.46