Finding the Fourth Proportional to 69,213.55, 103,674.52 and 56,091.55

Step by Step Solution

1. Step 1: Write the proportion equation
   69,213.55 : 103,674.52 = 56,091.55 : x
2. Step 2: Convert to fraction form
   69,213.55/103,674.52 = 56,091.55/x
3. Step 3: Cross multiply
   69,213.55x = 103,674.52 × 56,091.55
4. Step 4: Simplify right side
   69,213.55x = 5,815,264,522.31
5. Step 5: Solve for x
   x = 5,815,264,522.31/69,213.55
6. Step 6: Final answer
   x = 84,019.16