Finding the Fourth Proportional to 124,061.34, 171,131.76 and 78,047.82

Step by Step Solution

1. Step 1: Write the proportion equation
   124,061.34 : 171,131.76 = 78,047.82 : x
2. Step 2: Convert to fraction form
   124,061.34/171,131.76 = 78,047.82/x
3. Step 3: Cross multiply
   124,061.34x = 171,131.76 × 78,047.82
4. Step 4: Simplify right side
   124,061.34x = 13,356,460,800.76
5. Step 5: Solve for x
   x = 13,356,460,800.76/124,061.34
6. Step 6: Final answer
   x = 107,660.14