Finding the Fourth Proportional to 124,598.82, 172,008.06 and 76,878.48

Step by Step Solution

1. Step 1: Write the proportion equation
   124,598.82 : 172,008.06 = 76,878.48 : x
2. Step 2: Convert to fraction form
   124,598.82/172,008.06 = 76,878.48/x
3. Step 3: Cross multiply
   124,598.82x = 172,008.06 × 76,878.48
4. Step 4: Simplify right side
   124,598.82x = 13,223,718,200.55
5. Step 5: Solve for x
   x = 13,223,718,200.55/124,598.82
6. Step 6: Final answer
   x = 106,130.36