Finding the Fourth Proportional to 75,547.72, 104,259.54 and 42,013

Step by Step Solution

1. Step 1: Write the proportion equation
   75,547.72 : 104,259.54 = 42,013 : x
2. Step 2: Convert to fraction form
   75,547.72/104,259.54 = 42,013/x
3. Step 3: Cross multiply
   75,547.72x = 104,259.54 × 42,013
4. Step 4: Simplify right side
   75,547.72x = 4,380,256,054.02
5. Step 5: Solve for x
   x = 4,380,256,054.02/75,547.72
6. Step 6: Final answer
   x = 57,979.99