Finding the Fourth Proportional to 78,101.98, 117,134.69 and 21,947.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,101.98 : 117,134.69 = 21,947.46 : x
2. Step 2: Convert to fraction form
   78,101.98/117,134.69 = 21,947.46/x
3. Step 3: Cross multiply
   78,101.98x = 117,134.69 × 21,947.46
4. Step 4: Simplify right side
   78,101.98x = 2,570,808,590.44
5. Step 5: Solve for x
   x = 2,570,808,590.44/78,101.98
6. Step 6: Final answer
   x = 32,916.05