Finding the Fourth Proportional to 56,784.72, 78,364.47 and 31,634.22

Step by Step Solution

1. Step 1: Write the proportion equation
   56,784.72 : 78,364.47 = 31,634.22 : x
2. Step 2: Convert to fraction form
   56,784.72/78,364.47 = 31,634.22/x
3. Step 3: Cross multiply
   56,784.72x = 78,364.47 × 31,634.22
4. Step 4: Simplify right side
   56,784.72x = 2,478,998,884.16
5. Step 5: Solve for x
   x = 2,478,998,884.16/56,784.72
6. Step 6: Final answer
   x = 43,656.09