Finding the Fourth Proportional to 56,587.02, 78,091.48 and 31,093.18

Step by Step Solution

1. Step 1: Write the proportion equation
   56,587.02 : 78,091.48 = 31,093.18 : x
2. Step 2: Convert to fraction form
   56,587.02/78,091.48 = 31,093.18/x
3. Step 3: Cross multiply
   56,587.02x = 78,091.48 × 31,093.18
4. Step 4: Simplify right side
   56,587.02x = 2,428,111,898.18
5. Step 5: Solve for x
   x = 2,428,111,898.18/56,587.02
6. Step 6: Final answer
   x = 42,909.35