Finding the Fourth Proportional to 73,374.10, 101,256.72 and 39,840.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73,374.10 : 101,256.72 = 39,840.10 : x
2. Step 2: Convert to fraction form
   73,374.10/101,256.72 = 39,840.10/x
3. Step 3: Cross multiply
   73,374.10x = 101,256.72 × 39,840.10
4. Step 4: Simplify right side
   73,374.10x = 4,034,077,850.47
5. Step 5: Solve for x
   x = 4,034,077,850.47/73,374.10
6. Step 6: Final answer
   x = 54,979.59