Finding the Fourth Proportional to 90,967.48, 136,465.82 and 38,384.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,967.48 : 136,465.82 = 38,384.72 : x
2. Step 2: Convert to fraction form
   90,967.48/136,465.82 = 38,384.72/x
3. Step 3: Cross multiply
   90,967.48x = 136,465.82 × 38,384.72
4. Step 4: Simplify right side
   90,967.48x = 5,238,202,290.27
5. Step 5: Solve for x
   x = 5,238,202,290.27/90,967.48
6. Step 6: Final answer
   x = 57,583.24