Finding the Fourth Proportional to 42,275.84, 63,417.38 and 11,111

Step by Step Solution

1. Step 1: Write the proportion equation
   42,275.84 : 63,417.38 = 11,111 : x
2. Step 2: Convert to fraction form
   42,275.84/63,417.38 = 11,111/x
3. Step 3: Cross multiply
   42,275.84x = 63,417.38 × 11,111
4. Step 4: Simplify right side
   42,275.84x = 704,630,509.18
5. Step 5: Solve for x
   x = 704,630,509.18/42,275.84
6. Step 6: Final answer
   x = 16,667.45