Finding the Fourth Proportional to 78,910.56, 118,410.71 and 28,984.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,910.56 : 118,410.71 = 28,984.23 : x
2. Step 2: Convert to fraction form
   78,910.56/118,410.71 = 28,984.23/x
3. Step 3: Cross multiply
   78,910.56x = 118,410.71 × 28,984.23
4. Step 4: Simplify right side
   78,910.56x = 3,432,043,108.18
5. Step 5: Solve for x
   x = 3,432,043,108.18/78,910.56
6. Step 6: Final answer
   x = 43,492.82