Finding the Fourth Proportional to 78,914.34, 118,387.61 and 28,994.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,914.34 : 118,387.61 = 28,994.91 : x
2. Step 2: Convert to fraction form
   78,914.34/118,387.61 = 28,994.91/x
3. Step 3: Cross multiply
   78,914.34x = 118,387.61 × 28,994.91
4. Step 4: Simplify right side
   78,914.34x = 3,432,637,952.09
5. Step 5: Solve for x
   x = 3,432,637,952.09/78,914.34
6. Step 6: Final answer
   x = 43,498.28