Finding the Fourth Proportional to 73,918.08, 102,003.12 and 42,086.88

Step by Step Solution

1. Step 1: Write the proportion equation
   73,918.08 : 102,003.12 = 42,086.88 : x
2. Step 2: Convert to fraction form
   73,918.08/102,003.12 = 42,086.88/x
3. Step 3: Cross multiply
   73,918.08x = 102,003.12 × 42,086.88
4. Step 4: Simplify right side
   73,918.08x = 4,292,993,071.07
5. Step 5: Solve for x
   x = 4,292,993,071.07/73,918.08
6. Step 6: Final answer
   x = 58,077.71