Finding the Fourth Proportional to 37,891.39, 52,312.50 and 33,688

Step by Step Solution

1. Step 1: Write the proportion equation
   37,891.39 : 52,312.50 = 33,688 : x
2. Step 2: Convert to fraction form
   37,891.39/52,312.50 = 33,688/x
3. Step 3: Cross multiply
   37,891.39x = 52,312.50 × 33,688
4. Step 4: Simplify right side
   37,891.39x = 1,762,303,500
5. Step 5: Solve for x
   x = 1,762,303,500/37,891.39
6. Step 6: Final answer
   x = 46,509.34