Finding the Fourth Proportional to 77,952.06, 107,573.51 and 42,142.05

Step by Step Solution

1. Step 1: Write the proportion equation
   77,952.06 : 107,573.51 = 42,142.05 : x
2. Step 2: Convert to fraction form
   77,952.06/107,573.51 = 42,142.05/x
3. Step 3: Cross multiply
   77,952.06x = 107,573.51 × 42,142.05
4. Step 4: Simplify right side
   77,952.06x = 4,533,368,026.39
5. Step 5: Solve for x
   x = 4,533,368,026.39/77,952.06
6. Step 6: Final answer
   x = 58,155.85