Finding the Fourth Proportional to 28,360.01, 42,465.69 and 19,994.73

Step by Step Solution

1. Step 1: Write the proportion equation
   28,360.01 : 42,465.69 = 19,994.73 : x
2. Step 2: Convert to fraction form
   28,360.01/42,465.69 = 19,994.73/x
3. Step 3: Cross multiply
   28,360.01x = 42,465.69 × 19,994.73
4. Step 4: Simplify right side
   28,360.01x = 849,090,005.81
5. Step 5: Solve for x
   x = 849,090,005.81/28,360.01
6. Step 6: Final answer
   x = 29,939.70