Finding the Fourth Proportional to 56,532.15, 78,014.72 and 31,039.63

Step by Step Solution

1. Step 1: Write the proportion equation
   56,532.15 : 78,014.72 = 31,039.63 : x
2. Step 2: Convert to fraction form
   56,532.15/78,014.72 = 31,039.63/x
3. Step 3: Cross multiply
   56,532.15x = 78,014.72 × 31,039.63
4. Step 4: Simplify right side
   56,532.15x = 2,421,548,043.35
5. Step 5: Solve for x
   x = 2,421,548,043.35/56,532.15
6. Step 6: Final answer
   x = 42,834.88