Finding the Fourth Proportional to 89,434.19, 134,214.15 and 42,051.45

Step by Step Solution

1. Step 1: Write the proportion equation
   89,434.19 : 134,214.15 = 42,051.45 : x
2. Step 2: Convert to fraction form
   89,434.19/134,214.15 = 42,051.45/x
3. Step 3: Cross multiply
   89,434.19x = 134,214.15 × 42,051.45
4. Step 4: Simplify right side
   89,434.19x = 5,643,899,618.02
5. Step 5: Solve for x
   x = 5,643,899,618.02/89,434.19
6. Step 6: Final answer
   x = 63,106.74