Finding the Fourth Proportional to 42,036.64, 63,094.32 and 21,274.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,036.64 : 63,094.32 = 21,274.72 : x
2. Step 2: Convert to fraction form
   42,036.64/63,094.32 = 21,274.72/x
3. Step 3: Cross multiply
   42,036.64x = 63,094.32 × 21,274.72
4. Step 4: Simplify right side
   42,036.64x = 1,342,313,991.59
5. Step 5: Solve for x
   x = 1,342,313,991.59/42,036.64
6. Step 6: Final answer
   x = 31,932.00