Finding the Fourth Proportional to 42,238, 63,378.87 and 21,461.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,238 : 63,378.87 = 21,461.50 : x
2. Step 2: Convert to fraction form
   42,238/63,378.87 = 21,461.50/x
3. Step 3: Cross multiply
   42,238x = 63,378.87 × 21,461.50
4. Step 4: Simplify right side
   42,238x = 1,360,205,618.51
5. Step 5: Solve for x
   x = 1,360,205,618.51/42,238
6. Step 6: Final answer
   x = 32,203.36