Finding the Fourth Proportional to 82,404.40, 115,482.80 and 82,404.40

Step by Step Solution

1. Step 1: Write the proportion equation
   82,404.40 : 115,482.80 = 82,404.40 : x
2. Step 2: Convert to fraction form
   82,404.40/115,482.80 = 82,404.40/x
3. Step 3: Cross multiply
   82,404.40x = 115,482.80 × 82,404.40
4. Step 4: Simplify right side
   82,404.40x = 9,516,290,844.32
5. Step 5: Solve for x
   x = 9,516,290,844.32/82,404.40
6. Step 6: Final answer
   x = 115,482.80