Finding the Fourth Proportional to 89,417.76, 133,922.40 and 42,703.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,417.76 : 133,922.40 = 42,703.68 : x
2. Step 2: Convert to fraction form
   89,417.76/133,922.40 = 42,703.68/x
3. Step 3: Cross multiply
   89,417.76x = 133,922.40 × 42,703.68
4. Step 4: Simplify right side
   89,417.76x = 5,718,979,314.43
5. Step 5: Solve for x
   x = 5,718,979,314.43/89,417.76
6. Step 6: Final answer
   x = 63,957.98