Finding the Fourth Proportional to 118,345.20, 177,627.15 and 59,223.30

Step by Step Solution

1. Step 1: Write the proportion equation
   118,345.20 : 177,627.15 = 59,223.30 : x
2. Step 2: Convert to fraction form
   118,345.20/177,627.15 = 59,223.30/x
3. Step 3: Cross multiply
   118,345.20x = 177,627.15 × 59,223.30
4. Step 4: Simplify right side
   118,345.20x = 10,519,665,992.60
5. Step 5: Solve for x
   x = 10,519,665,992.60/118,345.20
6. Step 6: Final answer
   x = 88,889.67