Finding the Fourth Proportional to 56,595.08, 78,097.78 and 31,443.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,595.08 : 78,097.78 = 31,443.72 : x
2. Step 2: Convert to fraction form
   56,595.08/78,097.78 = 31,443.72/x
3. Step 3: Cross multiply
   56,595.08x = 78,097.78 × 31,443.72
4. Step 4: Simplify right side
   56,595.08x = 2,455,684,726.94
5. Step 5: Solve for x
   x = 2,455,684,726.94/56,595.08
6. Step 6: Final answer
   x = 43,390.43