Finding the Fourth Proportional to 70,130.43, 96,715.89 and 54,819

Step by Step Solution

1. Step 1: Write the proportion equation
   70,130.43 : 96,715.89 = 54,819 : x
2. Step 2: Convert to fraction form
   70,130.43/96,715.89 = 54,819/x
3. Step 3: Cross multiply
   70,130.43x = 96,715.89 × 54,819
4. Step 4: Simplify right side
   70,130.43x = 5,301,868,373.91
5. Step 5: Solve for x
   x = 5,301,868,373.91/70,130.43
6. Step 6: Final answer
   x = 75,600.11