Finding the Fourth Proportional to 111,525.81, 153,905.76 and 60,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,525.81 : 153,905.76 = 60,538.50 : x
2. Step 2: Convert to fraction form
   111,525.81/153,905.76 = 60,538.50/x
3. Step 3: Cross multiply
   111,525.81x = 153,905.76 × 60,538.50
4. Step 4: Simplify right side
   111,525.81x = 9,317,223,851.76
5. Step 5: Solve for x
   x = 9,317,223,851.76/111,525.81
6. Step 6: Final answer
   x = 83,543.21