Finding the Fourth Proportional to 102,111.82, 153,074.31 and 42,951.64

Step by Step Solution

1. Step 1: Write the proportion equation
   102,111.82 : 153,074.31 = 42,951.64 : x
2. Step 2: Convert to fraction form
   102,111.82/153,074.31 = 42,951.64/x
3. Step 3: Cross multiply
   102,111.82x = 153,074.31 × 42,951.64
4. Step 4: Simplify right side
   102,111.82x = 6,574,792,656.37
5. Step 5: Solve for x
   x = 6,574,792,656.37/102,111.82
6. Step 6: Final answer
   x = 64,388.16