Finding the Fourth Proportional to 82,454.10, 123,535.35 and 69,915.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,454.10 : 123,535.35 = 69,915.30 : x
2. Step 2: Convert to fraction form
   82,454.10/123,535.35 = 69,915.30/x
3. Step 3: Cross multiply
   82,454.10x = 123,535.35 × 69,915.30
4. Step 4: Simplify right side
   82,454.10x = 8,637,011,055.86
5. Step 5: Solve for x
   x = 8,637,011,055.86/82,454.10
6. Step 6: Final answer
   x = 104,749.32