Finding the Fourth Proportional to 52,047.88, 78,071.58 and 12,605

Step by Step Solution

1. Step 1: Write the proportion equation
   52,047.88 : 78,071.58 = 12,605 : x
2. Step 2: Convert to fraction form
   52,047.88/78,071.58 = 12,605/x
3. Step 3: Cross multiply
   52,047.88x = 78,071.58 × 12,605
4. Step 4: Simplify right side
   52,047.88x = 984,092,265.90
5. Step 5: Solve for x
   x = 984,092,265.90/52,047.88
6. Step 6: Final answer
   x = 18,907.44