Finding the Fourth Proportional to 42,173.88, 58,152.48 and 28,752.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,173.88 : 58,152.48 = 28,752.96 : x
2. Step 2: Convert to fraction form
   42,173.88/58,152.48 = 28,752.96/x
3. Step 3: Cross multiply
   42,173.88x = 58,152.48 × 28,752.96
4. Step 4: Simplify right side
   42,173.88x = 1,672,055,931.34
5. Step 5: Solve for x
   x = 1,672,055,931.34/42,173.88
6. Step 6: Final answer
   x = 39,646.72