Finding the Fourth Proportional to 56,580.04, 78,083.22 and 31,429

Step by Step Solution

1. Step 1: Write the proportion equation
   56,580.04 : 78,083.22 = 31,429 : x
2. Step 2: Convert to fraction form
   56,580.04/78,083.22 = 31,429/x
3. Step 3: Cross multiply
   56,580.04x = 78,083.22 × 31,429
4. Step 4: Simplify right side
   56,580.04x = 2,454,077,521.38
5. Step 5: Solve for x
   x = 2,454,077,521.38/56,580.04
6. Step 6: Final answer
   x = 43,373.56