Finding the Fourth Proportional to 118,786.32, 177,920.16 and 59,518.56

Step by Step Solution

1. Step 1: Write the proportion equation
   118,786.32 : 177,920.16 = 59,518.56 : x
2. Step 2: Convert to fraction form
   118,786.32/177,920.16 = 59,518.56/x
3. Step 3: Cross multiply
   118,786.32x = 177,920.16 × 59,518.56
4. Step 4: Simplify right side
   118,786.32x = 10,589,551,718.17
5. Step 5: Solve for x
   x = 10,589,551,718.17/118,786.32
6. Step 6: Final answer
   x = 89,147.91