Finding the Fourth Proportional to 42,783.64, 64,159.48 and 14,695.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,783.64 : 64,159.48 = 14,695.72 : x
2. Step 2: Convert to fraction form
   42,783.64/64,159.48 = 14,695.72/x
3. Step 3: Cross multiply
   42,783.64x = 64,159.48 × 14,695.72
4. Step 4: Simplify right side
   42,783.64x = 942,869,753.43
5. Step 5: Solve for x
   x = 942,869,753.43/42,783.64
6. Step 6: Final answer
   x = 22,038.09