Finding the Fourth Proportional to 78,348.59, 108,120.42 and 42,537.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78,348.59 : 108,120.42 = 42,537.89 : x
2. Step 2: Convert to fraction form
   78,348.59/108,120.42 = 42,537.89/x
3. Step 3: Cross multiply
   78,348.59x = 108,120.42 × 42,537.89
4. Step 4: Simplify right side
   78,348.59x = 4,599,214,532.71
5. Step 5: Solve for x
   x = 4,599,214,532.71/78,348.59
6. Step 6: Final answer
   x = 58,701.94