Finding the Fourth Proportional to 89,731.60, 123,835.12 and 49,445.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89,731.60 : 123,835.12 = 49,445.34 : x
2. Step 2: Convert to fraction form
   89,731.60/123,835.12 = 49,445.34/x
3. Step 3: Cross multiply
   89,731.60x = 123,835.12 × 49,445.34
4. Step 4: Simplify right side
   89,731.60x = 6,123,069,612.34
5. Step 5: Solve for x
   x = 6,123,069,612.34/89,731.60
6. Step 6: Final answer
   x = 68,237.61