Finding the Fourth Proportional to 82,140.75, 123,219.09 and 37,779.93

Step by Step Solution

1. Step 1: Write the proportion equation
   82,140.75 : 123,219.09 = 37,779.93 : x
2. Step 2: Convert to fraction form
   82,140.75/123,219.09 = 37,779.93/x
3. Step 3: Cross multiply
   82,140.75x = 123,219.09 × 37,779.93
4. Step 4: Simplify right side
   82,140.75x = 4,655,208,594.86
5. Step 5: Solve for x
   x = 4,655,208,594.86/82,140.75
6. Step 6: Final answer
   x = 56,673.56