Finding the Fourth Proportional to 56,632.02, 78,150.52 and 31,138.41

Step by Step Solution

1. Step 1: Write the proportion equation
   56,632.02 : 78,150.52 = 31,138.41 : x
2. Step 2: Convert to fraction form
   56,632.02/78,150.52 = 31,138.41/x
3. Step 3: Cross multiply
   56,632.02x = 78,150.52 × 31,138.41
4. Step 4: Simplify right side
   56,632.02x = 2,433,482,933.47
5. Step 5: Solve for x
   x = 2,433,482,933.47/56,632.02
6. Step 6: Final answer
   x = 42,970.09