Finding the Fourth Proportional to 42,354.16, 63,533.52 and 11,188.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,354.16 : 63,533.52 = 11,188.56 : x
2. Step 2: Convert to fraction form
   42,354.16/63,533.52 = 11,188.56/x
3. Step 3: Cross multiply
   42,354.16x = 63,533.52 × 11,188.56
4. Step 4: Simplify right side
   42,354.16x = 710,848,600.53
5. Step 5: Solve for x
   x = 710,848,600.53/42,354.16
6. Step 6: Final answer
   x = 16,783.44