Finding the Fourth Proportional to 42,932.16, 64,372.05 and 19,235.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,932.16 : 64,372.05 = 19,235.34 : x
2. Step 2: Convert to fraction form
   42,932.16/64,372.05 = 19,235.34/x
3. Step 3: Cross multiply
   42,932.16x = 64,372.05 × 19,235.34
4. Step 4: Simplify right side
   42,932.16x = 1,238,218,268.25
5. Step 5: Solve for x
   x = 1,238,218,268.25/42,932.16
6. Step 6: Final answer
   x = 28,841.28