Finding the Fourth Proportional to 113,622,477.78, 170,163,179.91 and 72,554,710.31

Step by Step Solution

1. Step 1: Write the proportion equation
   113,622,477.78 : 170,163,179.91 = 72,554,710.31 : x
2. Step 2: Convert to fraction form
   113,622,477.78/170,163,179.91 = 72,554,710.31/x
3. Step 3: Cross multiply
   113,622,477.78x = 170,163,179.91 × 72,554,710.31
4. Step 4: Simplify right side
   113,622,477.78x = 12,346,140,222,947,646
5. Step 5: Solve for x
   x = 12,346,140,222,947,646/113,622,477.78
6. Step 6: Final answer
   x = 108,659,311.64