Finding the Fourth Proportional to 78,498.82, 108,323.93 and 42,688.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,498.82 : 108,323.93 = 42,688.82 : x
2. Step 2: Convert to fraction form
   78,498.82/108,323.93 = 42,688.82/x
3. Step 3: Cross multiply
   78,498.82x = 108,323.93 × 42,688.82
4. Step 4: Simplify right side
   78,498.82x = 4,624,221,126.99
5. Step 5: Solve for x
   x = 4,624,221,126.99/78,498.82
6. Step 6: Final answer
   x = 58,908.16