Finding the Fourth Proportional to 81,804.30, 112,909.98 and 49,999.86

Step by Step Solution

1. Step 1: Write the proportion equation
   81,804.30 : 112,909.98 = 49,999.86 : x
2. Step 2: Convert to fraction form
   81,804.30/112,909.98 = 49,999.86/x
3. Step 3: Cross multiply
   81,804.30x = 112,909.98 × 49,999.86
4. Step 4: Simplify right side
   81,804.30x = 5,645,483,192.60
5. Step 5: Solve for x
   x = 5,645,483,192.60/81,804.30
6. Step 6: Final answer
   x = 69,012.06