Finding the Fourth Proportional to 35,499.94, 48,981.18 and 21,698.79

Step by Step Solution

1. Step 1: Write the proportion equation
   35,499.94 : 48,981.18 = 21,698.79 : x
2. Step 2: Convert to fraction form
   35,499.94/48,981.18 = 21,698.79/x
3. Step 3: Cross multiply
   35,499.94x = 48,981.18 × 21,698.79
4. Step 4: Simplify right side
   35,499.94x = 1,062,832,338.77
5. Step 5: Solve for x
   x = 1,062,832,338.77/35,499.94
6. Step 6: Final answer
   x = 29,938.99