Finding the Fourth Proportional to 78,392.94, 108,184.61 and 42,585.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,392.94 : 108,184.61 = 42,585.38 : x
2. Step 2: Convert to fraction form
   78,392.94/108,184.61 = 42,585.38/x
3. Step 3: Cross multiply
   78,392.94x = 108,184.61 × 42,585.38
4. Step 4: Simplify right side
   78,392.94x = 4,607,081,973.15
5. Step 5: Solve for x
   x = 4,607,081,973.15/78,392.94
6. Step 6: Final answer
   x = 58,769.09