Finding the Fourth Proportional to 42,445.52, 58,599.24 and 28,345.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,445.52 : 58,599.24 = 28,345.04 : x
2. Step 2: Convert to fraction form
   42,445.52/58,599.24 = 28,345.04/x
3. Step 3: Cross multiply
   42,445.52x = 58,599.24 × 28,345.04
4. Step 4: Simplify right side
   42,445.52x = 1,660,997,801.77
5. Step 5: Solve for x
   x = 1,660,997,801.77/42,445.52
6. Step 6: Final answer
   x = 39,132.46