Finding the Fourth Proportional to 89,880.32, 134,801.94 and 42,475.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,880.32 : 134,801.94 = 42,475.28 : x
2. Step 2: Convert to fraction form
   89,880.32/134,801.94 = 42,475.28/x
3. Step 3: Cross multiply
   89,880.32x = 134,801.94 × 42,475.28
4. Step 4: Simplify right side
   89,880.32x = 5,725,749,472.03
5. Step 5: Solve for x
   x = 5,725,749,472.03/89,880.32
6. Step 6: Final answer
   x = 63,704.15