Finding the Fourth Proportional to 127,528.04, 191,205.59 and 71,406.78

Step by Step Solution

1. Step 1: Write the proportion equation
   127,528.04 : 191,205.59 = 71,406.78 : x
2. Step 2: Convert to fraction form
   127,528.04/191,205.59 = 71,406.78/x
3. Step 3: Cross multiply
   127,528.04x = 191,205.59 × 71,406.78
4. Step 4: Simplify right side
   127,528.04x = 13,653,375,142.87
5. Step 5: Solve for x
   x = 13,653,375,142.87/127,528.04
6. Step 6: Final answer
   x = 107,061.75