Finding the Fourth Proportional to 77,947.59, 107,567 and 42,137.29

Step by Step Solution

1. Step 1: Write the proportion equation
   77,947.59 : 107,567 = 42,137.29 : x
2. Step 2: Convert to fraction form
   77,947.59/107,567 = 42,137.29/x
3. Step 3: Cross multiply
   77,947.59x = 107,567 × 42,137.29
4. Step 4: Simplify right side
   77,947.59x = 4,532,581,335.60
5. Step 5: Solve for x
   x = 4,532,581,335.60/77,947.59
6. Step 6: Final answer
   x = 58,149.09