Finding the Fourth Proportional to 61,978.42, 85,530.88 and 33,684.12

Step by Step Solution

1. Step 1: Write the proportion equation
   61,978.42 : 85,530.88 = 33,684.12 : x
2. Step 2: Convert to fraction form
   61,978.42/85,530.88 = 33,684.12/x
3. Step 3: Cross multiply
   61,978.42x = 85,530.88 × 33,684.12
4. Step 4: Simplify right side
   61,978.42x = 2,881,032,425.63
5. Step 5: Solve for x
   x = 2,881,032,425.63/61,978.42
6. Step 6: Final answer
   x = 46,484.44