Finding the Fourth Proportional to 78,565.34, 108,547.02 and 54,798.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,565.34 : 108,547.02 = 54,798.12 : x
2. Step 2: Convert to fraction form
   78,565.34/108,547.02 = 54,798.12/x
3. Step 3: Cross multiply
   78,565.34x = 108,547.02 × 54,798.12
4. Step 4: Simplify right side
   78,565.34x = 5,948,172,627.60
5. Step 5: Solve for x
   x = 5,948,172,627.60/78,565.34
6. Step 6: Final answer
   x = 75,709.88