Finding the Fourth Proportional to 77,983.83, 107,617.91 and 42,174.09

Step by Step Solution

1. Step 1: Write the proportion equation
   77,983.83 : 107,617.91 = 42,174.09 : x
2. Step 2: Convert to fraction form
   77,983.83/107,617.91 = 42,174.09/x
3. Step 3: Cross multiply
   77,983.83x = 107,617.91 × 42,174.09
4. Step 4: Simplify right side
   77,983.83x = 4,538,687,211.08
5. Step 5: Solve for x
   x = 4,538,687,211.08/77,983.83
6. Step 6: Final answer
   x = 58,200.36