Finding the Fourth Proportional to 42,531.67, 58,713.83 and 28,393.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,531.67 : 58,713.83 = 28,393.93 : x
2. Step 2: Convert to fraction form
   42,531.67/58,713.83 = 28,393.93/x
3. Step 3: Cross multiply
   42,531.67x = 58,713.83 × 28,393.93
4. Step 4: Simplify right side
   42,531.67x = 1,667,116,379.05
5. Step 5: Solve for x
   x = 1,667,116,379.05/42,531.67
6. Step 6: Final answer
   x = 39,197.06