Finding the Fourth Proportional to 71,090.52, 98,109 and 42,805.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,090.52 : 98,109 = 42,805.32 : x
2. Step 2: Convert to fraction form
   71,090.52/98,109 = 42,805.32/x
3. Step 3: Cross multiply
   71,090.52x = 98,109 × 42,805.32
4. Step 4: Simplify right side
   71,090.52x = 4,199,587,139.88
5. Step 5: Solve for x
   x = 4,199,587,139.88/71,090.52
6. Step 6: Final answer
   x = 59,073.80