Finding the Fourth Proportional to 60,191.28, 89,651.40 and 57,030.12

Step by Step Solution

1. Step 1: Write the proportion equation
   60,191.28 : 89,651.40 = 57,030.12 : x
2. Step 2: Convert to fraction form
   60,191.28/89,651.40 = 57,030.12/x
3. Step 3: Cross multiply
   60,191.28x = 89,651.40 × 57,030.12
4. Step 4: Simplify right side
   60,191.28x = 5,112,830,100.17
5. Step 5: Solve for x
   x = 5,112,830,100.17/60,191.28
6. Step 6: Final answer
   x = 84,943.04