Finding the Fourth Proportional to 112,228.17, 154,734.78 and 71,875.59

Step by Step Solution

1. Step 1: Write the proportion equation
   112,228.17 : 154,734.78 = 71,875.59 : x
2. Step 2: Convert to fraction form
   112,228.17/154,734.78 = 71,875.59/x
3. Step 3: Cross multiply
   112,228.17x = 154,734.78 × 71,875.59
4. Step 4: Simplify right side
   112,228.17x = 11,121,653,606.02
5. Step 5: Solve for x
   x = 11,121,653,606.02/112,228.17
6. Step 6: Final answer
   x = 99,098.59