Finding the Fourth Proportional to 124,910.20, 187,363.50 and 31,415.32

Step by Step Solution

1. Step 1: Write the proportion equation
   124,910.20 : 187,363.50 = 31,415.32 : x
2. Step 2: Convert to fraction form
   124,910.20/187,363.50 = 31,415.32/x
3. Step 3: Cross multiply
   124,910.20x = 187,363.50 × 31,415.32
4. Step 4: Simplify right side
   124,910.20x = 5,886,084,308.82
5. Step 5: Solve for x
   x = 5,886,084,308.82/124,910.20
6. Step 6: Final answer
   x = 47,122.53