Finding the Fourth Proportional to 57,056.51, 78,731.88 and 31,558.82

Step by Step Solution

1. Step 1: Write the proportion equation
   57,056.51 : 78,731.88 = 31,558.82 : x
2. Step 2: Convert to fraction form
   57,056.51/78,731.88 = 31,558.82/x
3. Step 3: Cross multiply
   57,056.51x = 78,731.88 × 31,558.82
4. Step 4: Simplify right side
   57,056.51x = 2,484,684,835.52
5. Step 5: Solve for x
   x = 2,484,684,835.52/57,056.51
6. Step 6: Final answer
   x = 43,547.79