Finding the Fourth Proportional to 137,770.86, 206,677.89 and 58,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,770.86 : 206,677.89 = 58,885.50 : x
2. Step 2: Convert to fraction form
   137,770.86/206,677.89 = 58,885.50/x
3. Step 3: Cross multiply
   137,770.86x = 206,677.89 × 58,885.50
4. Step 4: Simplify right side
   137,770.86x = 12,170,330,891.60
5. Step 5: Solve for x
   x = 12,170,330,891.60/137,770.86
6. Step 6: Final answer
   x = 88,337.48