Finding the Fourth Proportional to 112,459.01, 155,193.59 and 64,711.40

Step by Step Solution

1. Step 1: Write the proportion equation
   112,459.01 : 155,193.59 = 64,711.40 : x
2. Step 2: Convert to fraction form
   112,459.01/155,193.59 = 64,711.40/x
3. Step 3: Cross multiply
   112,459.01x = 155,193.59 × 64,711.40
4. Step 4: Simplify right side
   112,459.01x = 10,042,794,156.37
5. Step 5: Solve for x
   x = 10,042,794,156.37/112,459.01
6. Step 6: Final answer
   x = 89,301.82