Finding the Fourth Proportional to 89,908.90, 134,820.24 and 42,484.51

Step by Step Solution

1. Step 1: Write the proportion equation
   89,908.90 : 134,820.24 = 42,484.51 : x
2. Step 2: Convert to fraction form
   89,908.90/134,820.24 = 42,484.51/x
3. Step 3: Cross multiply
   89,908.90x = 134,820.24 × 42,484.51
4. Step 4: Simplify right side
   89,908.90x = 5,727,771,834.48
5. Step 5: Solve for x
   x = 5,727,771,834.48/89,908.90
6. Step 6: Final answer
   x = 63,706.39