Finding the Fourth Proportional to 112,085.86, 154,699.06 and 71,816.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,085.86 : 154,699.06 = 71,816.98 : x
2. Step 2: Convert to fraction form
   112,085.86/154,699.06 = 71,816.98/x
3. Step 3: Cross multiply
   112,085.86x = 154,699.06 × 71,816.98
4. Step 4: Simplify right side
   112,085.86x = 11,110,019,298.04
5. Step 5: Solve for x
   x = 11,110,019,298.04/112,085.86
6. Step 6: Final answer
   x = 99,120.61