Finding the Fourth Proportional to 78,508.23, 108,341.86 and 42,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,508.23 : 108,341.86 = 42,698.50 : x
2. Step 2: Convert to fraction form
   78,508.23/108,341.86 = 42,698.50/x
3. Step 3: Cross multiply
   78,508.23x = 108,341.86 × 42,698.50
4. Step 4: Simplify right side
   78,508.23x = 4,626,034,367.50
5. Step 5: Solve for x
   x = 4,626,034,367.50/78,508.23
6. Step 6: Final answer
   x = 58,924.20