Finding the Fourth Proportional to 123,780.83, 170,820.26 and 75,385.04

Step by Step Solution

1. Step 1: Write the proportion equation
   123,780.83 : 170,820.26 = 75,385.04 : x
2. Step 2: Convert to fraction form
   123,780.83/170,820.26 = 75,385.04/x
3. Step 3: Cross multiply
   123,780.83x = 170,820.26 × 75,385.04
4. Step 4: Simplify right side
   123,780.83x = 12,877,291,467.27
5. Step 5: Solve for x
   x = 12,877,291,467.27/123,780.83
6. Step 6: Final answer
   x = 104,033.00