Finding the Fourth Proportional to 118,049.64, 177,091.86 and 42,142.32

Step by Step Solution

1. Step 1: Write the proportion equation
   118,049.64 : 177,091.86 = 42,142.32 : x
2. Step 2: Convert to fraction form
   118,049.64/177,091.86 = 42,142.32/x
3. Step 3: Cross multiply
   118,049.64x = 177,091.86 × 42,142.32
4. Step 4: Simplify right side
   118,049.64x = 7,463,061,833.52
5. Step 5: Solve for x
   x = 7,463,061,833.52/118,049.64
6. Step 6: Final answer
   x = 63,219.69