Finding the Fourth Proportional to 15,538.31, 23,307.34 and 9,300.05

Step by Step Solution

1. Step 1: Write the proportion equation
   15,538.31 : 23,307.34 = 9,300.05 : x
2. Step 2: Convert to fraction form
   15,538.31/23,307.34 = 9,300.05/x
3. Step 3: Cross multiply
   15,538.31x = 23,307.34 × 9,300.05
4. Step 4: Simplify right side
   15,538.31x = 216,759,427.37
5. Step 5: Solve for x
   x = 216,759,427.37/15,538.31
6. Step 6: Final answer
   x = 13,950.00