Finding the Fourth Proportional to 256,947.08, 385,392.89 and 67,426.52

Step by Step Solution

1. Step 1: Write the proportion equation
   256,947.08 : 385,392.89 = 67,426.52 : x
2. Step 2: Convert to fraction form
   256,947.08/385,392.89 = 67,426.52/x
3. Step 3: Cross multiply
   256,947.08x = 385,392.89 × 67,426.52
4. Step 4: Simplify right side
   256,947.08x = 25,985,699,141.35
5. Step 5: Solve for x
   x = 25,985,699,141.35/256,947.08
6. Step 6: Final answer
   x = 101,132.50