Finding the Fourth Proportional to 111,415.27, 153,753.15 and 60,428.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111,415.27 : 153,753.15 = 60,428.01 : x
2. Step 2: Convert to fraction form
   111,415.27/153,753.15 = 60,428.01/x
3. Step 3: Cross multiply
   111,415.27x = 153,753.15 × 60,428.01
4. Step 4: Simplify right side
   111,415.27x = 9,290,996,885.73
5. Step 5: Solve for x
   x = 9,290,996,885.73/111,415.27
6. Step 6: Final answer
   x = 83,390.70