Finding the Fourth Proportional to 78,592.50, 117,910.35 and 23,188.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,592.50 : 117,910.35 = 23,188.50 : x
2. Step 2: Convert to fraction form
   78,592.50/117,910.35 = 23,188.50/x
3. Step 3: Cross multiply
   78,592.50x = 117,910.35 × 23,188.50
4. Step 4: Simplify right side
   78,592.50x = 2,734,164,150.98
5. Step 5: Solve for x
   x = 2,734,164,150.98/78,592.50
6. Step 6: Final answer
   x = 34,789.12