Finding the Fourth Proportional to 80,807.31, 121,077.32 and 41,310.09

Step by Step Solution

1. Step 1: Write the proportion equation
   80,807.31 : 121,077.32 = 41,310.09 : x
2. Step 2: Convert to fraction form
   80,807.31/121,077.32 = 41,310.09/x
3. Step 3: Cross multiply
   80,807.31x = 121,077.32 × 41,310.09
4. Step 4: Simplify right side
   80,807.31x = 5,001,714,779.61
5. Step 5: Solve for x
   x = 5,001,714,779.61/80,807.31
6. Step 6: Final answer
   x = 61,896.81