Finding the Fourth Proportional to 42,301.76, 63,439.84 and 17,672

Step by Step Solution

1. Step 1: Write the proportion equation
   42,301.76 : 63,439.84 = 17,672 : x
2. Step 2: Convert to fraction form
   42,301.76/63,439.84 = 17,672/x
3. Step 3: Cross multiply
   42,301.76x = 63,439.84 × 17,672
4. Step 4: Simplify right side
   42,301.76x = 1,121,108,852.48
5. Step 5: Solve for x
   x = 1,121,108,852.48/42,301.76
6. Step 6: Final answer
   x = 26,502.65