Finding the Fourth Proportional to 76,981.68, 106,175.88 and 53,148.24

Step by Step Solution

1. Step 1: Write the proportion equation
   76,981.68 : 106,175.88 = 53,148.24 : x
2. Step 2: Convert to fraction form
   76,981.68/106,175.88 = 53,148.24/x
3. Step 3: Cross multiply
   76,981.68x = 106,175.88 × 53,148.24
4. Step 4: Simplify right side
   76,981.68x = 5,643,061,152.45
5. Step 5: Solve for x
   x = 5,643,061,152.45/76,981.68
6. Step 6: Final answer
   x = 73,303.95