Finding the Fourth Proportional to 64,932.36, 89,592.42 and 42,268.92

Step by Step Solution

1. Step 1: Write the proportion equation
   64,932.36 : 89,592.42 = 42,268.92 : x
2. Step 2: Convert to fraction form
   64,932.36/89,592.42 = 42,268.92/x
3. Step 3: Cross multiply
   64,932.36x = 89,592.42 × 42,268.92
4. Step 4: Simplify right side
   64,932.36x = 3,786,974,833.59
5. Step 5: Solve for x
   x = 3,786,974,833.59/64,932.36
6. Step 6: Final answer
   x = 58,321.84