Finding the Fourth Proportional to 127,601.88, 191,261.84 and 52,680.72

Step by Step Solution

1. Step 1: Write the proportion equation
   127,601.88 : 191,261.84 = 52,680.72 : x
2. Step 2: Convert to fraction form
   127,601.88/191,261.84 = 52,680.72/x
3. Step 3: Cross multiply
   127,601.88x = 191,261.84 × 52,680.72
4. Step 4: Simplify right side
   127,601.88x = 10,075,811,439.72
5. Step 5: Solve for x
   x = 10,075,811,439.72/127,601.88
6. Step 6: Final answer
   x = 78,962.88