Finding the Fourth Proportional to 42,584.08, 58,340.45 and 40,987.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,584.08 : 58,340.45 = 40,987.93 : x
2. Step 2: Convert to fraction form
   42,584.08/58,340.45 = 40,987.93/x
3. Step 3: Cross multiply
   42,584.08x = 58,340.45 × 40,987.93
4. Step 4: Simplify right side
   42,584.08x = 2,391,254,280.77
5. Step 5: Solve for x
   x = 2,391,254,280.77/42,584.08
6. Step 6: Final answer
   x = 56,153.71