Finding the Fourth Proportional to 61,617.31, 85,038.39 and 37,418.15

Step by Step Solution

1. Step 1: Write the proportion equation
   61,617.31 : 85,038.39 = 37,418.15 : x
2. Step 2: Convert to fraction form
   61,617.31/85,038.39 = 37,418.15/x
3. Step 3: Cross multiply
   61,617.31x = 85,038.39 × 37,418.15
4. Step 4: Simplify right side
   61,617.31x = 3,181,979,445.37
5. Step 5: Solve for x
   x = 3,181,979,445.37/61,617.31
6. Step 6: Final answer
   x = 51,641.00