Finding the Fourth Proportional to 90,509.82, 135,735.93 and 37,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,509.82 : 135,735.93 = 37,909.50 : x
2. Step 2: Convert to fraction form
   90,509.82/135,735.93 = 37,909.50/x
3. Step 3: Cross multiply
   90,509.82x = 135,735.93 × 37,909.50
4. Step 4: Simplify right side
   90,509.82x = 5,145,681,238.34
5. Step 5: Solve for x
   x = 5,145,681,238.34/90,509.82
6. Step 6: Final answer
   x = 56,852.19