Finding the Fourth Proportional to 112,307.40, 154,997.46 and 64,562.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,307.40 : 154,997.46 = 64,562.76 : x
2. Step 2: Convert to fraction form
   112,307.40/154,997.46 = 64,562.76/x
3. Step 3: Cross multiply
   112,307.40x = 154,997.46 × 64,562.76
4. Step 4: Simplify right side
   112,307.40x = 10,007,063,810.59
5. Step 5: Solve for x
   x = 10,007,063,810.59/112,307.40
6. Step 6: Final answer
   x = 89,104.22