Finding the Fourth Proportional to 56,582.04, 78,085.98 and 31,431

Step by Step Solution

1. Step 1: Write the proportion equation
   56,582.04 : 78,085.98 = 31,431 : x
2. Step 2: Convert to fraction form
   56,582.04/78,085.98 = 31,431/x
3. Step 3: Cross multiply
   56,582.04x = 78,085.98 × 31,431
4. Step 4: Simplify right side
   56,582.04x = 2,454,320,437.38
5. Step 5: Solve for x
   x = 2,454,320,437.38/56,582.04
6. Step 6: Final answer
   x = 43,376.32