Finding the Fourth Proportional to 78,507.94, 108,341.88 and 42,698.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,507.94 : 108,341.88 = 42,698.08 : x
2. Step 2: Convert to fraction form
   78,507.94/108,341.88 = 42,698.08/x
3. Step 3: Cross multiply
   78,507.94x = 108,341.88 × 42,698.08
4. Step 4: Simplify right side
   78,507.94x = 4,625,990,259.59
5. Step 5: Solve for x
   x = 4,625,990,259.59/78,507.94
6. Step 6: Final answer
   x = 58,923.85