Finding the Fourth Proportional to 90,949.86, 136,342.71 and 38,362.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,949.86 : 136,342.71 = 38,362.50 : x
2. Step 2: Convert to fraction form
   90,949.86/136,342.71 = 38,362.50/x
3. Step 3: Cross multiply
   90,949.86x = 136,342.71 × 38,362.50
4. Step 4: Simplify right side
   90,949.86x = 5,230,447,212.38
5. Step 5: Solve for x
   x = 5,230,447,212.38/90,949.86
6. Step 6: Final answer
   x = 57,509.13