Finding the Fourth Proportional to 63,128.79, 94,706.15 and 18,751.59

Step by Step Solution

1. Step 1: Write the proportion equation
   63,128.79 : 94,706.15 = 18,751.59 : x
2. Step 2: Convert to fraction form
   63,128.79/94,706.15 = 18,751.59/x
3. Step 3: Cross multiply
   63,128.79x = 94,706.15 × 18,751.59
4. Step 4: Simplify right side
   63,128.79x = 1,775,890,801.52
5. Step 5: Solve for x
   x = 1,775,890,801.52/63,128.79
6. Step 6: Final answer
   x = 28,131.23