Finding the Fourth Proportional to 127,870.72, 191,575.68 and 68,643.52

Step by Step Solution

1. Step 1: Write the proportion equation
   127,870.72 : 191,575.68 = 68,643.52 : x
2. Step 2: Convert to fraction form
   127,870.72/191,575.68 = 68,643.52/x
3. Step 3: Cross multiply
   127,870.72x = 191,575.68 × 68,643.52
4. Step 4: Simplify right side
   127,870.72x = 13,150,429,021.59
5. Step 5: Solve for x
   x = 13,150,429,021.59/127,870.72
6. Step 6: Final answer
   x = 102,841.60