Finding the Fourth Proportional to 42,729.29, 64,038.16 and 30,922.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,729.29 : 64,038.16 = 30,922.82 : x
2. Step 2: Convert to fraction form
   42,729.29/64,038.16 = 30,922.82/x
3. Step 3: Cross multiply
   42,729.29x = 64,038.16 × 30,922.82
4. Step 4: Simplify right side
   42,729.29x = 1,980,240,494.81
5. Step 5: Solve for x
   x = 1,980,240,494.81/42,729.29
6. Step 6: Final answer
   x = 46,343.87