Finding the Fourth Proportional to 79,581.31, 109,820.54 and 43,770.74

Step by Step Solution

1. Step 1: Write the proportion equation
   79,581.31 : 109,820.54 = 43,770.74 : x
2. Step 2: Convert to fraction form
   79,581.31/109,820.54 = 43,770.74/x
3. Step 3: Cross multiply
   79,581.31x = 109,820.54 × 43,770.74
4. Step 4: Simplify right side
   79,581.31x = 4,806,925,863.32
5. Step 5: Solve for x
   x = 4,806,925,863.32/79,581.31
6. Step 6: Final answer
   x = 60,402.70