Finding the Fourth Proportional to 127,990.71, 191,904.03 and 53,162.49

Step by Step Solution

1. Step 1: Write the proportion equation
   127,990.71 : 191,904.03 = 53,162.49 : x
2. Step 2: Convert to fraction form
   127,990.71/191,904.03 = 53,162.49/x
3. Step 3: Cross multiply
   127,990.71x = 191,904.03 × 53,162.49
4. Step 4: Simplify right side
   127,990.71x = 10,202,096,075.83
5. Step 5: Solve for x
   x = 10,202,096,075.83/127,990.71
6. Step 6: Final answer
   x = 79,709.66