Finding the Fourth Proportional to 112,412.00, 154,837.51 and 78,359.60

Step by Step Solution

1. Step 1: Write the proportion equation
   112,412.00 : 154,837.51 = 78,359.60 : x
2. Step 2: Convert to fraction form
   112,412.00/154,837.51 = 78,359.60/x
3. Step 3: Cross multiply
   112,412.00x = 154,837.51 × 78,359.60
4. Step 4: Simplify right side
   112,412.00x = 12,133,004,182.61
5. Step 5: Solve for x
   x = 12,133,004,182.61/112,412.00
6. Step 6: Final answer
   x = 107,933.36