Finding the Fourth Proportional to 42,557.58, 58,728.90 and 23,436.99

Step by Step Solution

1. Step 1: Write the proportion equation
   42,557.58 : 58,728.90 = 23,436.99 : x
2. Step 2: Convert to fraction form
   42,557.58/58,728.90 = 23,436.99/x
3. Step 3: Cross multiply
   42,557.58x = 58,728.90 × 23,436.99
4. Step 4: Simplify right side
   42,557.58x = 1,376,428,642.01
5. Step 5: Solve for x
   x = 1,376,428,642.01/42,557.58
6. Step 6: Final answer
   x = 32,342.74