Finding the Fourth Proportional to 112,452.72, 155,191.32 and 62,156.40

Step by Step Solution

1. Step 1: Write the proportion equation
   112,452.72 : 155,191.32 = 62,156.40 : x
2. Step 2: Convert to fraction form
   112,452.72/155,191.32 = 62,156.40/x
3. Step 3: Cross multiply
   112,452.72x = 155,191.32 × 62,156.40
4. Step 4: Simplify right side
   112,452.72x = 9,646,133,762.45
5. Step 5: Solve for x
   x = 9,646,133,762.45/112,452.72
6. Step 6: Final answer
   x = 85,779.46