Finding the Fourth Proportional to 61,189.57, 91,636.15 and 31,124.71

Step by Step Solution

1. Step 1: Write the proportion equation
   61,189.57 : 91,636.15 = 31,124.71 : x
2. Step 2: Convert to fraction form
   61,189.57/91,636.15 = 31,124.71/x
3. Step 3: Cross multiply
   61,189.57x = 91,636.15 × 31,124.71
4. Step 4: Simplify right side
   61,189.57x = 2,852,148,594.27
5. Step 5: Solve for x
   x = 2,852,148,594.27/61,189.57
6. Step 6: Final answer
   x = 46,611.68