Finding the Fourth Proportional to 79,385.60, 109,553.37 and 43,578.88

Step by Step Solution

1. Step 1: Write the proportion equation
   79,385.60 : 109,553.37 = 43,578.88 : x
2. Step 2: Convert to fraction form
   79,385.60/109,553.37 = 43,578.88/x
3. Step 3: Cross multiply
   79,385.60x = 109,553.37 × 43,578.88
4. Step 4: Simplify right side
   79,385.60x = 4,774,213,164.83
5. Step 5: Solve for x
   x = 4,774,213,164.83/79,385.60
6. Step 6: Final answer
   x = 60,139.54