Finding the Fourth Proportional to 137,111.86, 205,689.39 and 58,226.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,111.86 : 205,689.39 = 58,226.50 : x
2. Step 2: Convert to fraction form
   137,111.86/205,689.39 = 58,226.50/x
3. Step 3: Cross multiply
   137,111.86x = 205,689.39 × 58,226.50
4. Step 4: Simplify right side
   137,111.86x = 11,976,573,266.84
5. Step 5: Solve for x
   x = 11,976,573,266.84/137,111.86
6. Step 6: Final answer
   x = 87,348.92