Finding the Fourth Proportional to 89,880.82, 134,802.70 and 42,475.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,880.82 : 134,802.70 = 42,475.76 : x
2. Step 2: Convert to fraction form
   89,880.82/134,802.70 = 42,475.76/x
3. Step 3: Cross multiply
   89,880.82x = 134,802.70 × 42,475.76
4. Step 4: Simplify right side
   89,880.82x = 5,725,847,132.55
5. Step 5: Solve for x
   x = 5,725,847,132.55/89,880.82
6. Step 6: Final answer
   x = 63,704.88