Finding the Fourth Proportional to 35,487, 48,972.42 and 21,340.08

Step by Step Solution

1. Step 1: Write the proportion equation
   35,487 : 48,972.42 = 21,340.08 : x
2. Step 2: Convert to fraction form
   35,487/48,972.42 = 21,340.08/x
3. Step 3: Cross multiply
   35,487x = 48,972.42 × 21,340.08
4. Step 4: Simplify right side
   35,487x = 1,045,075,360.59
5. Step 5: Solve for x
   x = 1,045,075,360.59/35,487
6. Step 6: Final answer
   x = 29,449.53