Finding the Fourth Proportional to 45,701.64, 68,362.86 and 42,902.28

Step by Step Solution

1. Step 1: Write the proportion equation
   45,701.64 : 68,362.86 = 42,902.28 : x
2. Step 2: Convert to fraction form
   45,701.64/68,362.86 = 42,902.28/x
3. Step 3: Cross multiply
   45,701.64x = 68,362.86 × 42,902.28
4. Step 4: Simplify right side
   45,701.64x = 2,932,922,561.32
5. Step 5: Solve for x
   x = 2,932,922,561.32/45,701.64
6. Step 6: Final answer
   x = 64,175.43