Finding the Fourth Proportional to 56,661.08, 78,191.18 and 31,510.04

Step by Step Solution

1. Step 1: Write the proportion equation
   56,661.08 : 78,191.18 = 31,510.04 : x
2. Step 2: Convert to fraction form
   56,661.08/78,191.18 = 31,510.04/x
3. Step 3: Cross multiply
   56,661.08x = 78,191.18 × 31,510.04
4. Step 4: Simplify right side
   56,661.08x = 2,463,807,209.45
5. Step 5: Solve for x
   x = 2,463,807,209.45/56,661.08
6. Step 6: Final answer
   x = 43,483.24