Finding the Fourth Proportional to 127,820.69, 191,601.15 and 52,981.55

Step by Step Solution

1. Step 1: Write the proportion equation
   127,820.69 : 191,601.15 = 52,981.55 : x
2. Step 2: Convert to fraction form
   127,820.69/191,601.15 = 52,981.55/x
3. Step 3: Cross multiply
   127,820.69x = 191,601.15 × 52,981.55
4. Step 4: Simplify right side
   127,820.69x = 10,151,325,908.78
5. Step 5: Solve for x
   x = 10,151,325,908.78/127,820.69
6. Step 6: Final answer
   x = 79,418.49