Finding the Fourth Proportional to 77,984.32, 107,618.61 and 42,174.58

Step by Step Solution

1. Step 1: Write the proportion equation
   77,984.32 : 107,618.61 = 42,174.58 : x
2. Step 2: Convert to fraction form
   77,984.32/107,618.61 = 42,174.58/x
3. Step 3: Cross multiply
   77,984.32x = 107,618.61 × 42,174.58
4. Step 4: Simplify right side
   77,984.32x = 4,538,769,676.93
5. Step 5: Solve for x
   x = 4,538,769,676.93/77,984.32
6. Step 6: Final answer
   x = 58,201.05