Finding the Fourth Proportional to 78,645.84, 108,527.52 and 42,835.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,645.84 : 108,527.52 = 42,835.68 : x
2. Step 2: Convert to fraction form
   78,645.84/108,527.52 = 42,835.68/x
3. Step 3: Cross multiply
   78,645.84x = 108,527.52 × 42,835.68
4. Step 4: Simplify right side
   78,645.84x = 4,648,850,117.91
5. Step 5: Solve for x
   x = 4,648,850,117.91/78,645.84
6. Step 6: Final answer
   x = 59,111.20