Finding the Fourth Proportional to 42,448.88, 58,557.32 and 28,832.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,448.88 : 58,557.32 = 28,832.08 : x
2. Step 2: Convert to fraction form
   42,448.88/58,557.32 = 28,832.08/x
3. Step 3: Cross multiply
   42,448.88x = 58,557.32 × 28,832.08
4. Step 4: Simplify right side
   42,448.88x = 1,688,329,334.83
5. Step 5: Solve for x
   x = 1,688,329,334.83/42,448.88
6. Step 6: Final answer
   x = 39,773.24