Finding the Fourth Proportional to 89,077.23, 133,630.56 and 42,314.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,077.23 : 133,630.56 = 42,314.31 : x
2. Step 2: Convert to fraction form
   89,077.23/133,630.56 = 42,314.31/x
3. Step 3: Cross multiply
   89,077.23x = 133,630.56 × 42,314.31
4. Step 4: Simplify right side
   89,077.23x = 5,654,484,941.31
5. Step 5: Solve for x
   x = 5,654,484,941.31/89,077.23
6. Step 6: Final answer
   x = 63,478.46