Finding the Fourth Proportional to 42,533.83, 58,713.15 and 28,381.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,533.83 : 58,713.15 = 28,381.51 : x
2. Step 2: Convert to fraction form
   42,533.83/58,713.15 = 28,381.51/x
3. Step 3: Cross multiply
   42,533.83x = 58,713.15 × 28,381.51
4. Step 4: Simplify right side
   42,533.83x = 1,666,367,853.86
5. Step 5: Solve for x
   x = 1,666,367,853.86/42,533.83
6. Step 6: Final answer
   x = 39,177.47