Finding the Fourth Proportional to 78,958.18, 108,911.37 and 47,102.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,958.18 : 108,911.37 = 47,102.50 : x
2. Step 2: Convert to fraction form
   78,958.18/108,911.37 = 47,102.50/x
3. Step 3: Cross multiply
   78,958.18x = 108,911.37 × 47,102.50
4. Step 4: Simplify right side
   78,958.18x = 5,129,997,805.43
5. Step 5: Solve for x
   x = 5,129,997,805.43/78,958.18
6. Step 6: Final answer
   x = 64,971.07