Finding the Fourth Proportional to 61,700.64, 85,145.88 and 33,405.72

Step by Step Solution

1. Step 1: Write the proportion equation
   61,700.64 : 85,145.88 = 33,405.72 : x
2. Step 2: Convert to fraction form
   61,700.64/85,145.88 = 33,405.72/x
3. Step 3: Cross multiply
   61,700.64x = 85,145.88 × 33,405.72
4. Step 4: Simplify right side
   61,700.64x = 2,844,359,426.43
5. Step 5: Solve for x
   x = 2,844,359,426.43/61,700.64
6. Step 6: Final answer
   x = 46,099.35