Finding the Fourth Proportional to 111,368.71, 153,689.87 and 60,381.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,368.71 : 153,689.87 = 60,381.30 : x
2. Step 2: Convert to fraction form
   111,368.71/153,689.87 = 60,381.30/x
3. Step 3: Cross multiply
   111,368.71x = 153,689.87 × 60,381.30
4. Step 4: Simplify right side
   111,368.71x = 9,279,994,147.43
5. Step 5: Solve for x
   x = 9,279,994,147.43/111,368.71
6. Step 6: Final answer
   x = 83,326.76