Finding the Fourth Proportional to 19,773.12, 29,670.72 and 10,538.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,773.12 : 29,670.72 = 10,538.88 : x
2. Step 2: Convert to fraction form
   19,773.12/29,670.72 = 10,538.88/x
3. Step 3: Cross multiply
   19,773.12x = 29,670.72 × 10,538.88
4. Step 4: Simplify right side
   19,773.12x = 312,696,157.59
5. Step 5: Solve for x
   x = 312,696,157.59/19,773.12
6. Step 6: Final answer
   x = 15,814.20