Finding the Fourth Proportional to 42,766.58, 64,149.72 and 11,601.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,766.58 : 64,149.72 = 11,601.86 : x
2. Step 2: Convert to fraction form
   42,766.58/64,149.72 = 11,601.86/x
3. Step 3: Cross multiply
   42,766.58x = 64,149.72 × 11,601.86
4. Step 4: Simplify right side
   42,766.58x = 744,256,070.48
5. Step 5: Solve for x
   x = 744,256,070.48/42,766.58
6. Step 6: Final answer
   x = 17,402.75