Finding the Fourth Proportional to 118,106.57, 177,066.30 and 58,911.77

Step by Step Solution

1. Step 1: Write the proportion equation
   118,106.57 : 177,066.30 = 58,911.77 : x
2. Step 2: Convert to fraction form
   118,106.57/177,066.30 = 58,911.77/x
3. Step 3: Cross multiply
   118,106.57x = 177,066.30 × 58,911.77
4. Step 4: Simplify right side
   118,106.57x = 10,431,289,140.35
5. Step 5: Solve for x
   x = 10,431,289,140.35/118,106.57
6. Step 6: Final answer
   x = 88,320.99