Finding the Fourth Proportional to 56,784.79, 85,112.61 and 34,549.17

Step by Step Solution

1. Step 1: Write the proportion equation
   56,784.79 : 85,112.61 = 34,549.17 : x
2. Step 2: Convert to fraction form
   56,784.79/85,112.61 = 34,549.17/x
3. Step 3: Cross multiply
   56,784.79x = 85,112.61 × 34,549.17
4. Step 4: Simplify right side
   56,784.79x = 2,940,570,032.03
5. Step 5: Solve for x
   x = 2,940,570,032.03/56,784.79
6. Step 6: Final answer
   x = 51,784.47