Finding the Fourth Proportional to 56,576.16, 78,075.12 and 31,084.16

Step by Step Solution

1. Step 1: Write the proportion equation
   56,576.16 : 78,075.12 = 31,084.16 : x
2. Step 2: Convert to fraction form
   56,576.16/78,075.12 = 31,084.16/x
3. Step 3: Cross multiply
   56,576.16x = 78,075.12 × 31,084.16
4. Step 4: Simplify right side
   56,576.16x = 2,426,899,522.10
5. Step 5: Solve for x
   x = 2,426,899,522.10/56,576.16
6. Step 6: Final answer
   x = 42,896.15