Finding the Fourth Proportional to 42,711.06, 64,023.72 and 14,611.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,711.06 : 64,023.72 = 14,611.86 : x
2. Step 2: Convert to fraction form
   42,711.06/64,023.72 = 14,611.86/x
3. Step 3: Cross multiply
   42,711.06x = 64,023.72 × 14,611.86
4. Step 4: Simplify right side
   42,711.06x = 935,505,633.32
5. Step 5: Solve for x
   x = 935,505,633.32/42,711.06
6. Step 6: Final answer
   x = 21,903.12