Finding the Fourth Proportional to 137,414.86, 206,235.33 and 58,618.06

Step by Step Solution

1. Step 1: Write the proportion equation
   137,414.86 : 206,235.33 = 58,618.06 : x
2. Step 2: Convert to fraction form
   137,414.86/206,235.33 = 58,618.06/x
3. Step 3: Cross multiply
   137,414.86x = 206,235.33 × 58,618.06
4. Step 4: Simplify right side
   137,414.86x = 12,089,114,948.06
5. Step 5: Solve for x
   x = 12,089,114,948.06/137,414.86
6. Step 6: Final answer
   x = 87,975.31