Finding the Fourth Proportional to 39,858.59, 59,791.33 and 10,276.18

Step by Step Solution

1. Step 1: Write the proportion equation
   39,858.59 : 59,791.33 = 10,276.18 : x
2. Step 2: Convert to fraction form
   39,858.59/59,791.33 = 10,276.18/x
3. Step 3: Cross multiply
   39,858.59x = 59,791.33 × 10,276.18
4. Step 4: Simplify right side
   39,858.59x = 614,426,294.35
5. Step 5: Solve for x
   x = 614,426,294.35/39,858.59
6. Step 6: Final answer
   x = 15,415.15