Finding the Fourth Proportional to 112,943.32, 169,350.18 and 42,777.88

Step by Step Solution

1. Step 1: Write the proportion equation
   112,943.32 : 169,350.18 = 42,777.88 : x
2. Step 2: Convert to fraction form
   112,943.32/169,350.18 = 42,777.88/x
3. Step 3: Cross multiply
   112,943.32x = 169,350.18 × 42,777.88
4. Step 4: Simplify right side
   112,943.32x = 7,244,441,678.02
5. Step 5: Solve for x
   x = 7,244,441,678.02/112,943.32
6. Step 6: Final answer
   x = 64,142.28