Finding the Fourth Proportional to 112,909.66, 155,820.18 and 65,162.86

Step by Step Solution

1. Step 1: Write the proportion equation
   112,909.66 : 155,820.18 = 65,162.86 : x
2. Step 2: Convert to fraction form
   112,909.66/155,820.18 = 65,162.86/x
3. Step 3: Cross multiply
   112,909.66x = 155,820.18 × 65,162.86
4. Step 4: Simplify right side
   112,909.66x = 10,153,688,574.51
5. Step 5: Solve for x
   x = 10,153,688,574.51/112,909.66
6. Step 6: Final answer
   x = 89,927.55