Finding the Fourth Proportional to 90,588.72, 135,870.82 and 34,443

Step by Step Solution

1. Step 1: Write the proportion equation
   90,588.72 : 135,870.82 = 34,443 : x
2. Step 2: Convert to fraction form
   90,588.72/135,870.82 = 34,443/x
3. Step 3: Cross multiply
   90,588.72x = 135,870.82 × 34,443
4. Step 4: Simplify right side
   90,588.72x = 4,679,798,653.26
5. Step 5: Solve for x
   x = 4,679,798,653.26/90,588.72
6. Step 6: Final answer
   x = 51,659.84