Finding the Fourth Proportional to 56,876.04, 78,485.39 and 31,382.61

Step by Step Solution

1. Step 1: Write the proportion equation
   56,876.04 : 78,485.39 = 31,382.61 : x
2. Step 2: Convert to fraction form
   56,876.04/78,485.39 = 31,382.61/x
3. Step 3: Cross multiply
   56,876.04x = 78,485.39 × 31,382.61
4. Step 4: Simplify right side
   56,876.04x = 2,463,076,051.52
5. Step 5: Solve for x
   x = 2,463,076,051.52/56,876.04
6. Step 6: Final answer
   x = 43,306.04