Finding the Fourth Proportional to 127,666.48, 191,499.42 and 38,920.72

Step by Step Solution

1. Step 1: Write the proportion equation
   127,666.48 : 191,499.42 = 38,920.72 : x
2. Step 2: Convert to fraction form
   127,666.48/191,499.42 = 38,920.72/x
3. Step 3: Cross multiply
   127,666.48x = 191,499.42 × 38,920.72
4. Step 4: Simplify right side
   127,666.48x = 7,453,295,305.98
5. Step 5: Solve for x
   x = 7,453,295,305.98/127,666.48
6. Step 6: Final answer
   x = 58,380.99