Finding the Fourth Proportional to 52,080.34, 78,118.71 and 14,640.70

Step by Step Solution

1. Step 1: Write the proportion equation
   52,080.34 : 78,118.71 = 14,640.70 : x
2. Step 2: Convert to fraction form
   52,080.34/78,118.71 = 14,640.70/x
3. Step 3: Cross multiply
   52,080.34x = 78,118.71 × 14,640.70
4. Step 4: Simplify right side
   52,080.34x = 1,143,712,597.50
5. Step 5: Solve for x
   x = 1,143,712,597.50/52,080.34
6. Step 6: Final answer
   x = 21,960.54