Finding the Fourth Proportional to 56,585.31, 78,089.76 and 32,390.70

Step by Step Solution

1. Step 1: Write the proportion equation
   56,585.31 : 78,089.76 = 32,390.70 : x
2. Step 2: Convert to fraction form
   56,585.31/78,089.76 = 32,390.70/x
3. Step 3: Cross multiply
   56,585.31x = 78,089.76 × 32,390.70
4. Step 4: Simplify right side
   56,585.31x = 2,529,381,989.23
5. Step 5: Solve for x
   x = 2,529,381,989.23/56,585.31
6. Step 6: Final answer
   x = 44,700.33