Finding the Fourth Proportional to 112,436.71, 155,143.96 and 67,133.00

Step by Step Solution

1. Step 1: Write the proportion equation
   112,436.71 : 155,143.96 = 67,133.00 : x
2. Step 2: Convert to fraction form
   112,436.71/155,143.96 = 67,133.00/x
3. Step 3: Cross multiply
   112,436.71x = 155,143.96 × 67,133.00
4. Step 4: Simplify right side
   112,436.71x = 10,415,279,686.71
5. Step 5: Solve for x
   x = 10,415,279,686.71/112,436.71
6. Step 6: Final answer
   x = 92,632.38