Finding the Fourth Proportional to 118,086.27, 177,111.15 and 43,188.90

Step by Step Solution

1. Step 1: Write the proportion equation
   118,086.27 : 177,111.15 = 43,188.90 : x
2. Step 2: Convert to fraction form
   118,086.27/177,111.15 = 43,188.90/x
3. Step 3: Cross multiply
   118,086.27x = 177,111.15 × 43,188.90
4. Step 4: Simplify right side
   118,086.27x = 7,649,235,746.24
5. Step 5: Solve for x
   x = 7,649,235,746.24/118,086.27
6. Step 6: Final answer
   x = 64,776.67