Finding the Fourth Proportional to 200,515.17, 276,711.00 and 109,870.40

Step by Step Solution

1. Step 1: Write the proportion equation
   200,515.17 : 276,711.00 = 109,870.40 : x
2. Step 2: Convert to fraction form
   200,515.17/276,711.00 = 109,870.40/x
3. Step 3: Cross multiply
   200,515.17x = 276,711.00 × 109,870.40
4. Step 4: Simplify right side
   200,515.17x = 30,402,346,458.83
5. Step 5: Solve for x
   x = 30,402,346,458.83/200,515.17
6. Step 6: Final answer
   x = 151,621.18