Finding the Fourth Proportional to 78,937.42, 118,326.33 and 33,988.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,937.42 : 118,326.33 = 33,988.09 : x
2. Step 2: Convert to fraction form
   78,937.42/118,326.33 = 33,988.09/x
3. Step 3: Cross multiply
   78,937.42x = 118,326.33 × 33,988.09
4. Step 4: Simplify right side
   78,937.42x = 4,021,685,783.86
5. Step 5: Solve for x
   x = 4,021,685,783.86/78,937.42
6. Step 6: Final answer
   x = 50,947.77